Christine Ritchie, MD

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  • Professor, School of Medicine
  • Member, CFAR Scientific Council


Christine Ritchie, MD, MSPH, FACP, FAAHPM, is the Harris Fishbon Distinguished Professor in Clinical Translational Research and Aging in the Division of Geriatrics, Department of Medicine at the University of California San Francisco (UCSF).

A graduate of Davidson College and the University of North Carolina at Chapel Hill School of Medicine, she completed her internal medicine residency, chief residency and geriatric fellowship at the University of Alabama at Birmingham (UAB). She is a board certified geriatrician and palliative care physician and has a long-standing experience in clinical care delivery models, medical home care and advanced illness research. She is a recipient of an NIA-funded Geriatric Academic Leadership Award in Advanced Illness and Multimorbidity. She is also an inaugural member of the NIH-funded national Palliative Care Research Cooperative. She is an Associate Editor for the Journal of Palliative Medicine, serves on the Editorial Board of the Journal of Gerontology: Medical Sciences and is on the Board of the American Academy of Hospice and Palliative Medicine. Dr. Ritchie serves on the Public Policy and Research Committees of the American Academy of Homecare Physicians, has built and directed integrated health care programs that included medical house calls and has previously created a highly successful medical registry for managing patients with advanced chronic obstructive pulmonary disease in two health care systems.

Dr. Ritchie’s goal is to build a research program at UCSF at the interface of palliative care and geriatrics that seeks to improve quality of life and patient outcomes for those experiencing complex serious illnesses. Emphasis areas are in the area of chronic serious illness, multimorbidity, symptom burden and patient care complexity. She is currently studying the impact of symptom burden on health care utilization in individuals with multiple chronic conditions including cancer. She is also evaluating how patient-centered monitoring technology can be used to support patients and families with serious illness in their transition from the hospital to home.

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  1. Sheehan OC, Ritchie CS, Garrett SB, Harrison KL, Mickler A, Eaton England AL, Sharma Basyal P, Garrigues SK, Leff B. Unanticipated Therapeutic Value of the Patient-Centered Outcomes Research Institute (PCORI) Stakeholder Engagement Project for Homebound Older Adults. J Am Med Dir Assoc. 2020 May 03. View on Pubmed
  2. Chen J, Sadasivam R, Blok AC, Ritchie CS, Nagawa C, Orvek E, Patel K, Houston TK. The Association Between Patient-reported Clinical Factors and 30-day Acute Care Utilization in Chronic Heart Failure. Med Care. 2020 Apr; 58(4):336-343. View on Pubmed
  3. Harrison KL, Leff B, Altan A, Dunning S, Patterson CR, Ritchie CS. What's Happening at Home: A Claims-based Approach to Better Understand Home Clinical Care Received by Older Adults. Med Care. 2020 04; 58(4):360-367. View on Pubmed
  4. Ritchie CS, Garrett SB, Thompson N, Miaskowski C. Unintended Consequences of Opioid Regulations in Older Adults with Multiple Chronic Conditions. Gerontologist. 2020 Mar 29. View on Pubmed
  5. Harrison KL, Allison TA, Garrett SB, Thompson N, Sudore RL, Ritchie CS. Hospice Staff Perspectives on Caring for People with Dementia: A Multisite, Multistakeholder Study. J Palliat Med. 2020 Mar 04. View on Pubmed
  6. Kutner JS, Ritchie CS, Pollak KI. Better Together: The Palliative Care Research Cooperative Group as a Model for Increasing Equity in the Science of Hospice and Palliative Care. J Palliat Med. 2020 Jan 24. View on Pubmed
  7. Harrison KL, Bull JH, Garrett SB, Bonsignore L, Bice T, Hanson LC, Ritchie CS. Community-Based Palliative Care Consultations: Comparing Dementia to Nondementia Serious Illnesses. J Palliat Med. 2020 Jan 22. View on Pubmed
  8. Anand S, Glaspy J, Roh L, Khandelwal V, Wenger N, Ritchie C, Walling AM. Establishing a Denominator for Palliative Care Quality Metrics for Patients with Advanced Cancer. J Palliat Med. 2020 Jan 10. View on Pubmed
  9. Miaskowski C, Blyth F, Nicosia F, Haan M, Keefe F, Smith A, Ritchie C. A Biopsychosocial Model of Chronic Pain for Older Adults. Pain Med. 2019 Dec 17. View on Pubmed
  10. Jih J, Nguyen TT, Jin C, Seligman H, Boscardin WJ, Ritchie CS. Food Insecurity Is Associated with Behavioral Health Diagnosis Among Older Primary Care Patients with Multiple Chronic Conditions. J Gen Intern Med. 2019 Dec 05. View on Pubmed
  11. Bernstein A, Rogers KM, Possin KL, Steele NZR, Ritchie CS, Kramer JH, Geschwind M, Higgins JJ, Wohlgemuth J, Pesano R, Miller BL, Rankin KP. Dementia assessment and management in primary care settings: a survey of current provider practices in the United States. BMC Health Serv Res. 2019 Nov 29; 19(1):919. View on Pubmed
  12. Schear S, Patel K, Deng LX, Miaskowski C, Maravilla I, Garrigues SK, Thompson N, Auerbach AD, Ritchie CS. Multimorbidity and Opioid Prescribing in Hospitalized Older Adults. J Palliat Med. 2020 Apr; 23(4):475-482. View on Pubmed
  13. Nicosia FM, Spar MJ, Stebbins M, Sudore RL, Ritchie CS, Lee KP, Rodondi K, Steinman MA. What Is a Medication-Related Problem? A Qualitative Study of Older Adults and Primary Care Clinicians. J Gen Intern Med. 2020 Mar; 35(3):724-731. View on Pubmed
  14. Sheehan OC, Leff B, Ritchie CS, Garrigues SK, Li L, Saliba D, Fathi R, Boyd CM. A systematic literature review of the assessment of treatment burden experienced by patients and their caregivers. BMC Geriatr. 2019 Oct 11; 19(1):262. View on Pubmed
  15. Feuz MA, Odierna DH, Katen M, Volow A, McMahan RD, Ritchie CS, McSpadden S, Dearman K, Sudore RL. Leveraging In-Home Supportive Services Programs to Engage People in Advance Care Planning: Input from Staff, Providers, and Client Stakeholders. J Palliat Med. 2019 Nov; 22(11):1430-1438. View on Pubmed
  16. Oh A, Patel K, Boscardin WJ, Max W, Stephens C, Ritchie CS, Smith AK. Social Support and Patterns of Institutionalization Among Older Adults: A Longitudinal Study. J Am Geriatr Soc. 2019 Dec; 67(12):2622-2627. View on Pubmed
  17. Possin KL, Merrilees JJ, Dulaney S, Bonasera SJ, Chiong W, Lee K, Hooper SM, Allen IE, Braley T, Bernstein A, Rosa TD, Harrison K, Begert-Hellings H, Kornak J, Kahn JG, Naasan G, Lanata S, Clark AM, Chodos A, Gearhart R, Ritchie C, Miller BL. Effect of Collaborative Dementia Care via Telephone and Internet on Quality of Life, Caregiver Well-being, and Health Care Use: The Care Ecosystem Randomized Clinical Trial. JAMA Intern Med. 2019 Sep 30. View on Pubmed
  18. Walling AM, Sudore RL, Bell D, Tseng CH, Ritchie C, Hays RD, Gibbs L, Rahimi M, Sanz J, Wenger NS. Population-Based Pragmatic Trial of Advance Care Planning in Primary Care in the University of California Health System. J Palliat Med. 2019 Sep; 22(S1):72-81. View on Pubmed
  19. Bernstein A, Rogers KM, Possin KL, Steele NZR, Ritchie CS, Miller BL, Rankin KP. Primary Care Provider Attitudes and Practices Evaluating and Managing Patients with Neurocognitive Disorders. J Gen Intern Med. 2019 Sep; 34(9):1691-1692. View on Pubmed
  20. Harrison KL, Ritchie CS, Patel K, Hunt LJ, Covinsky KE, Yaffe K, Smith AK. Care Settings and Clinical Characteristics of Older Adults with Moderately Severe Dementia. J Am Geriatr Soc. 2019 Sep; 67(9):1907-1912. View on Pubmed
  21. Sheehan OC, Leff B, Ritchie CS. Frailty Tools are Not Yet Ready for Prime Time in High-Risk Identification. J Hosp Med. 2019 Jul; 14(7):450. View on Pubmed
  22. Dudley N, Ritchie CS, Stijacic-Cenzer I, Lee SJ. Palliative Care Needs in Oncology, Cardiology, and Neurology Clinic Patients in the USA. J Gen Intern Med. 2019 Jul; 34(7):1100-1102. View on Pubmed
  23. Calton BA, Rabow MW, Branagan L, Dionne-Odom JN, Parker Oliver D, Bakitas MA, Fratkin MD, Lustbader D, Jones CA, Ritchie CS. Top Ten Tips Palliative Care Clinicians Should Know About Telepalliative Care. J Palliat Med. 2019 Aug; 22(8):981-985. View on Pubmed
  24. Leff B, Lasher A, Ritchie CS. Can Home-Based Primary Care Drive Integration of Medical and Social Care for Complex Older Adults? J Am Geriatr Soc. 2019 Jul; 67(7):1333-1335. View on Pubmed
  25. Kamal AH, Bowman B, Ritchie CS. Identifying Palliative Care Champions to Promote High-Quality Care to Those with Serious Illness. J Am Geriatr Soc. 2019 May; 67(S2):S461-S467. View on Pubmed
  26. Stephens CE, Halifax E, David D, Bui N, Lee SJ, Shim J, Ritchie CS. "They Don't Trust Us": The Influence of Perceptions of Inadequate Nursing Home Care on Emergency Department Transfers and the Potential Role for Telehealth. Clin Nurs Res. 2020 Mar; 29(3):157-168. View on Pubmed
  27. Harrison KL, Hunt LJ, Ritchie CS, Yaffe K. Dying With Dementia: Underrecognized and Stigmatized. J Am Geriatr Soc. 2019 Aug; 67(8):1548-1551. View on Pubmed
  28. Ritchie CS, Leff B, Harrison K. Response to Letter to the Editor "Caregiver Assessment Is Critical to HBMC". J Am Med Dir Assoc. 2019 May; 20(5):651. View on Pubmed
  29. Kelley AS, Ferreira KB, Bollens-Lund E, Mather H, Hanson LC, Ritchie CS. Identifying Older Adults With Serious Illness: Transitioning From ICD-9 to ICD-10. J Pain Symptom Manage. 2019 06; 57(6):1137-1142. View on Pubmed
  30. Anne Calton B, Ritchie C. "Yes! We Have a Home-Based Palliative Care Program!" J Am Geriatr Soc. 2019 Jun; 67(6):1113-1114. View on Pubmed
  31. Piña-Escudero SD, Weinstein CA, Ritchie C. Contextualizing mistreatment in cognitive impairment in Latin America. J Elder Abuse Negl. 2019 03; 31(3):255-261. View on Pubmed
  32. Huber K, Patel K, Garrigues S, Leff B, Ritchie C. Interdisciplinary Teams and Home-Based Medical Care: Secondary Analysis of a National Survey. J Am Med Dir Assoc. 2019 Jun; 20(6):770-774. View on Pubmed
  33. Wallhagen MI, Ritchie CS, Smith AK. Hearing Loss: Effect on Hospice and Palliative Care Through the Eyes of Practitioners. J Pain Symptom Manage. 2019 04; 57(4):724-730. View on Pubmed
  34. Chang A, Lundebjerg NE, Abrams J, Barnes DE, Fain MJ, Hall WJ, Johnson TM, Michael Harper G, Williams B, Ritchie CS. Leadership, Inside and Out: The Tideswell-AGS-ADGAP Emerging Leaders in Aging Program. J Am Geriatr Soc. 2019 03; 67(3):437-442. View on Pubmed
  35. Bernstein A, Harrison KL, Dulaney S, Merrilees J, Bowhay A, Heunis J, Choi J, Feuer JE, Clark AM, Chiong W, Lee K, Braley TL, Bonasera SJ, Ritchie CS, Dohan D, Miller BL, Possin KL. The Role of Care Navigators Working with People with Dementia and Their Caregivers. J Alzheimers Dis. 2019; 71(1):45-55. View on Pubmed
  36. Dudley N, Ritchie CS, Rehm RS, Chapman SA, Wallhagen MI. Facilitators and Barriers to Interdisciplinary Communication between Providers in Primary Care and Palliative Care. J Palliat Med. 2019 03; 22(3):243-249. View on Pubmed
  37. Merlin JS, Patel K, Thompson N, Kapo J, Keefe F, Liebschutz J, Paice J, Somers T, Starrels J, Childers J, Schenker Y, Ritchie CS. Managing Chronic Pain in Cancer Survivors Prescribed Long-Term Opioid Therapy: A National Survey of Ambulatory Palliative Care Providers. J Pain Symptom Manage. 2019 01; 57(1):20-27. View on Pubmed
  38. Cooper Z, Lilley EJ, Bollens-Lund E, Mitchell SL, Ritchie CS, Lipstiz SR, Kelley AS. High Burden of Palliative Care Needs of Older Adults During Emergency Major Abdominal Surgery. J Am Geriatr Soc. 2018 11; 66(11):2072-2078. View on Pubmed
  39. Hunt LJ, Ritchie CS, Cataldo JK, Patel K, Stephens CE, Smith AK. Pain and Emergency Department Use in the Last Month of Life Among Older Adults With Dementia. J Pain Symptom Manage. 2018 12; 56(6):871-877.e7. View on Pubmed
  40. Wong ML, Paul SM, Mastick J, Ritchie C, Steinman MA, Walter LC, Miaskowski C. Characteristics Associated With Physical Function Trajectories in Older Adults With Cancer During Chemotherapy. J Pain Symptom Manage. 2018 11; 56(5):678-688.e1. View on Pubmed
  41. Utne I, Løyland B, Grov EK, Rasmussen HL, Torstveit AH, Cooper BA, Mastick J, Mazor M, Wong M, Paul SM, Conley YP, Jahan T, Ritchie C, Levine JD, Miaskowski C. Distinct attentional function profiles in older adults receiving cancer chemotherapy. Eur J Oncol Nurs. 2018 Oct; 36:32-39. View on Pubmed
  42. Deng LX, Patel K, Miaskowski C, Maravilla I, Schear S, Garrigues S, Thompson N, Auerbach AD, Ritchie CS. Prevalence and Characteristics of Moderate to Severe Pain among Hospitalized Older Adults. J Am Geriatr Soc. 2018 09; 66(9):1744-1751. View on Pubmed
  43. Yao NA, Ritchie C, Cornwell T, Leff B. Use of Home-Based Medical Care and Disparities. J Am Geriatr Soc. 2018 09; 66(9):1716-1720. View on Pubmed
  44. Ritchie CS, Leff B, Garrigues SK, Perissinotto C, Sheehan OC, Harrison KL. A Quality of Care Framework for Home-Based Medical Care. J Am Med Dir Assoc. 2018 10; 19(10):818-823. View on Pubmed
  45. Odierna DH, Katen MT, Feuz MA, McMahan RD, Ritchie CS, McSpadden S, Burns M, Volow AM, Sudore RL. Symptom Assessment Solutions for In-Home Supportive Services and Diverse Older Adults: A Roadmap for Change. J Palliat Med. 2018 10; 21(10):1486-1493. View on Pubmed
  46. Boucher NA, Nicolla J, Ogunseitan A, Kessler ER, Ritchie CS, Zafar YY. Feasibility and Acceptability of a Best Supportive Care Checklist among Clinicians. J Palliat Med. 2018 08; 21(8):1074-1077. View on Pubmed
  47. Moore KL, Patel K, Boscardin WJ, Steinman MA, Ritchie C, Schwartz JB. Medication burden attributable to chronic co-morbid conditions in the very old and vulnerable. PLoS One. 2018; 13(4):e0196109. View on Pubmed
  48. Reckrey JM, Brody AA, McCormick ET, DeCherrie LV, Zhu CW, Ritchie CS, Siu AL, Egorova NN, Federman AD. Rationale and design of a randomized controlled trial of home-based primary care versus usual care for high-risk homebound older adults. Contemp Clin Trials. 2018 05; 68:90-94. View on Pubmed
  49. Dudley N, Lee SJ, Stijacic-Cenzer I, Ritchie CS. Prevalence of Multimorbidity Among Older Adults With Advanced Illness Visits to U.S. Subspecialty Clinics. J Pain Symptom Manage. 2018 07; 56(1):e4-e6. View on Pubmed
  50. Ritchie CS, Kutner JS, Blatchford PJ, Abernethy AP. Response to Davis and Behm (doi: 10.1089/jpm.2017.0608): Discontinuation of Statins. J Palliat Med. 2018 03; 21(3):283. View on Pubmed
  51. Jih J, Stijacic-Cenzer I, Seligman HK, Boscardin WJ, Nguyen TT, Ritchie CS. Chronic disease burden predicts food insecurity among older adults. Public Health Nutr. 2018 06; 21(9):1737-1742. View on Pubmed
  52. Stephens CE, Hunt LJ, Bui N, Halifax E, Ritchie CS, Lee SJ. Palliative Care Eligibility, Symptom Burden, and Quality-of-Life Ratings in Nursing Home Residents. JAMA Intern Med. 2018 01 01; 178(1):141-142. View on Pubmed
  53. Ard JD, Gower B, Hunter G, Ritchie CS, Roth DL, Goss A, Wingo BC, Bodner EV, Brown CJ, Bryan D, Buys DR, Haas MC, Keita AD, Flagg LA, Williams CP, Locher JL. Effects of Calorie Restriction in Obese Older Adults: The CROSSROADS Randomized Controlled Trial. J Gerontol A Biol Sci Med Sci. 2017 Dec 12; 73(1):73-80. View on Pubmed
  54. Patanwala M, Tieu L, Ponath C, Guzman D, Ritchie CS, Kushel M. Physical, Psychological, Social, and Existential Symptoms in Older Homeless-Experienced Adults: An Observational Study of the Hope Home Cohort. J Gen Intern Med. 2018 05; 33(5):635-643. View on Pubmed
  55. Jaffee EM, Dang CV, Agus DB, Alexander BM, Anderson KC, Ashworth A, Barker AD, Bastani R, Bhatia S, Bluestone JA, Brawley O, Butte AJ, Coit DG, Davidson NE, Davis M, DePinho RA, Diasio RB, Draetta G, Frazier AL, Futreal A, Gambhir SS, Ganz PA, Garraway L, Gerson S, Gupta S, Heath J, Hoffman RI, Hudis C, Hughes-Halbert C, Ibrahim R, Jadvar H, Kavanagh B, Kittles R, Le QT, Lippman SM, Mankoff D, Mardis ER, Mayer DK, McMasters K, Meropol NJ, Mitchell B, Naredi P, Ornish D, Pawlik TM, Peppercorn J, Pomper MG, Raghavan D, Ritchie C, Schwarz SW, Sullivan R, Wahl R, Wolchok JD, Wong SL, Yung A. Future cancer research priorities in the USA: a Lancet Oncology Commission. Lancet Oncol. 2017 11; 18(11):e653-e706. View on Pubmed
  56. Tai-Seale M, Yang Y, Dillon E, Tapper S, Lai S, Yu P, Allore H, Ritchie C. Community-Based Palliative Care and Advance Care Planning Documentation: Evidence from a Multispecialty Group. J Am Geriatr Soc. 2018 02; 66(2):327-332. View on Pubmed
  57. Ritchie CS, Leff B. Population Health and Tailored Medical Care in the Home: the Roles of Home-Based Primary Care and Home-Based Palliative Care. J Pain Symptom Manage. 2018 03; 55(3):1041-1046. View on Pubmed
  58. Dudley N, Ritchie CS, Wallhagen MI, Covinsky KE, Cooper BA, Patel K, Stijacic Cenzer I, Chapman SA. Characteristics of Older Adults in Primary Care Who May Benefit From Primary Palliative Care in the U.S. J Pain Symptom Manage. 2018 02; 55(2):217-225. View on Pubmed
  59. Dzeng E, Dohan D, Curtis JR, Smith TJ, Colaianni A, Ritchie CS. Homing in on the Social: System-Level Influences on Overly Aggressive Treatments at the End of Life. J Pain Symptom Manage. 2018 02; 55(2):282-289.e1. View on Pubmed
  60. Sudore RL, Heyland DK, Lum HD, Rietjens JAC, Korfage IJ, Ritchie CS, Hanson LC, Meier DE, Pantilat SZ, Lorenz K, Howard M, Green MJ, Simon JE, Feuz MA, You JJ. Outcomes That Define Successful Advance Care Planning: A Delphi Panel Consensus. J Pain Symptom Manage. 2018 02; 55(2):245-255.e8. View on Pubmed
  61. Portz JD, Kutner JS, Blatchford PJ, Ritchie CS. High Symptom Burden and Low Functional Status in the Setting of Multimorbidity. J Am Geriatr Soc. 2017 Oct; 65(10):2285-2289. View on Pubmed
  62. Miaskowski C, Wong ML, Cooper BA, Mastick J, Paul SM, Possin K, Steinman M, Cataldo J, Dunn LB, Ritchie C. Distinct Physical Function Profiles in Older Adults Receiving Cancer Chemotherapy. J Pain Symptom Manage. 2017 09; 54(3):263-272. View on Pubmed
  63. Ritchie CS, Zhao F, Patel K, Manola J, Kvale EA, Snyder CF, Fisch MJ. Association between patients' perception of the comorbidity burden and symptoms in outpatients with common solid tumors. Cancer. 2017 Oct 01; 123(19):3835-3842. View on Pubmed
  64. Tjia J, Kutner JS, Ritchie CS, Blatchford PJ, Bennett Kendrick RE, Prince-Paul M, Somers TJ, McPherson ML, Sloan JA, Abernethy AP, Furuno JP. Perceptions of Statin Discontinuation among Patients with Life-Limiting Illness. J Palliat Med. 2017 10; 20(10):1098-1103. View on Pubmed
  65. Possin KL, Merrilees J, Bonasera SJ, Bernstein A, Chiong W, Lee K, Wilson L, Hooper SM, Dulaney S, Braley T, Laohavanich S, Feuer JE, Clark AM, Schaffer MW, Schenk AK, Heunis J, Ong P, Cook KM, Bowhay AD, Gearhart R, Chodos A, Naasan G, Bindman AB, Dohan D, Ritchie C, Miller BL. Development of an adaptive, personalized, and scalable dementia care program: Early findings from the Care Ecosystem. PLoS Med. 2017 03; 14(3):e1002260. View on Pubmed
  66. Calton BA, Thompson N, Shepard N, Keyssar R, Patel K, Dzul-Church V, Kao H, Ritchie C, Rabow MW. "She Would Be Flailing Around Distressed": The Critical Role of Home-Based Palliative Care for Patients with Advanced Cancer. J Palliat Med. 2017 08; 20(8):875-878. View on Pubmed
  67. Dillon E, Chuang J, Gupta A, Tapper S, Lai S, Yu P, Ritchie C, Tai-Seale M. Provider Perspectives on Advance Care Planning Documentation in the Electronic Health Record: The Experience of Primary Care Providers and Specialists Using Advance Health-Care Directives and Physician Orders for Life-Sustaining Treatment. Am J Hosp Palliat Care. 2017 Dec; 34(10):918-924. View on Pubmed
  68. Harrison KL, Dzeng E, Ritchie CS, Shanafelt TD, Kamal AH, Bull JH, Tilburt JC, Swetz KM. Addressing Palliative Care Clinician Burnout in Organizations: A Workforce Necessity, an Ethical Imperative. J Pain Symptom Manage. 2017 06; 53(6):1091-1096. View on Pubmed
  69. Fathi R, Bacchetti P, Haan MN, Houston TK, Patel K, Ritchie CS. Life-Space Assessment Predicts Hospital Readmission in Home-Limited Adults. J Am Geriatr Soc. 2017 May; 65(5):1004-1011. View on Pubmed
  70. Kennedy RE, Sawyer P, Williams CP, Lo AX, Ritchie CS, Roth DL, Allman RM, Brown CJ. Life-Space Mobility Change Predicts 6-Month Mortality. J Am Geriatr Soc. 2017 Apr; 65(4):833-838. View on Pubmed
  71. Pérez CM, Muñoz F, Andriankaja OM, Ritchie CS, Martínez S, Vergara J, Vivaldi J, López L, Campos M, Joshipura KJ. Cross-sectional associations of impaired glucose metabolism measures with bleeding on probing and periodontitis. J Clin Periodontol. 2017 02; 44(2):142-149. View on Pubmed
  72. Sudore RL, Lum HD, You JJ, Hanson LC, Meier DE, Pantilat SZ, Matlock DD, Rietjens JAC, Korfage IJ, Ritchie CS, Kutner JS, Teno JM, Thomas J, McMahan RD, Heyland DK. Defining Advance Care Planning for Adults: A Consensus Definition From a Multidisciplinary Delphi Panel. J Pain Symptom Manage. 2017 05; 53(5):821-832.e1. View on Pubmed
  73. Harrison KL, Adrion ER, Ritchie CS, Sudore RL, Smith AK. Low Completion and Disparities in Advance Care Planning Activities Among Older Medicare Beneficiaries. JAMA Intern Med. 2016 12 01; 176(12):1872-1875. View on Pubmed
  74. LeBlanc TW, Ritchie CS, Friedman F, Bull J, Kutner JS, Johnson KS, Kamal AH. Adherence to Measuring What Matters Items When Caring for Patients With Hematologic Malignancies Versus Solid Tumors. J Pain Symptom Manage. 2016 12; 52(6):775-782. View on Pubmed
  75. Sheehan OC, Ritchie CS, Fathi R, Garrigues SK, Saliba D, Leff B. Development of Quality Indicators to Address Abuse and Neglect in Home-Based Primary Care and Palliative Care. J Am Geriatr Soc. 2016 12; 64(12):2577-2584. View on Pubmed
  76. Shih J, Leutwyler H, Ritchie C, Paul SM, Levine JD, Cooper B, Wright F, Conley YP, Miaskowski C. Characteristics associated with inter-individual differences in the trajectories of self-reported attentional function in oncology outpatients receiving chemotherapy. Support Care Cancer. 2017 03; 25(3):783-793. View on Pubmed
  77. Smith AK, Currow DC, Abernethy AP, Johnson MJ, Miao Y, Boscardin WJ, Ritchie CS. Prevalence and Outcomes of Breathlessness in Older Adults: A National Population Study. J Am Geriatr Soc. 2016 10; 64(10):2035-2041. View on Pubmed
  78. Tang VL, Sudore R, Cenzer IS, Boscardin WJ, Smith A, Ritchie C, Wallhagen M, Finlayson E, Petrillo L, Covinsky K. Rates of Recovery to Pre-Fracture Function in Older Persons with Hip Fracture: an Observational Study. J Gen Intern Med. 2017 Feb; 32(2):153-158. View on Pubmed
  79. Ritchie CS, Houston TK, Richman JS, Sobko HJ, Berner ES, Taylor BB, Salanitro AH, Locher JL. The E-Coach technology-assisted care transition system: a pragmatic randomized trial. Transl Behav Med. 2016 09; 6(3):428-37. View on Pubmed
  80. Bolano M, Ahalt C, Ritchie C, Stijacic-Cenzer I, Williams B. Detained and Distressed: Persistent Distressing Symptoms in a Population of Older Jail Inmates. J Am Geriatr Soc. 2016 11; 64(11):2349-2355. View on Pubmed
  81. Ritchie CS, Kelley AS, Stijacic Cenzer I, Smith AK, Wallhagen ML, Covinsky KE. High Levels of Geriatric Palliative Care Needs in Hip Fracture Patients Before the Hip Fracture. J Pain Symptom Manage. 2016 10; 52(4):533-538. View on Pubmed
  82. Yao N, Ritchie C, Camacho F, Leff B. Geographic Concentration Of Home-Based Medical Care Providers. Health Aff (Millwood). 2016 08 01; 35(8):1404-9. View on Pubmed
  83. Petrillo LA, Ritchie CS. The challenges of symptom management for patients with multimorbidity in research and practice: a thematic review. Prog Palliat Care. 2016; 24(5):262-267. View on Pubmed
  84. Bischel LE, Ritchie C, Kober KM, Paul SM, Cooper BA, Chen LM, Levine JD, Hammer M, Wright F, Miaskowski C. Age differences in fatigue, decrements in energy, and sleep disturbance in oncology patients receiving chemotherapy. Eur J Oncol Nurs. 2016 Aug; 23:115-23. View on Pubmed
  85. Shafir A, Garrigues SK, Schenker Y, Leff B, Neil J, Ritchie C. Homebound Patient and Caregiver Perceptions of Quality of Care in Home-Based Primary Care: A Qualitative Study. J Am Geriatr Soc. 2016 08; 64(8):1622-7. View on Pubmed
  86. Kvale EA, Huang CS, Meneses KM, Demark-Wahnefried W, Bae S, Azuero CB, Rocque GB, Bevis KS, Ritchie CS. Patient-centered support in the survivorship care transition: Outcomes from the Patient-Owned Survivorship Care Plan Intervention. Cancer. 2016 Oct 15; 122(20):3232-3242. View on Pubmed
  87. Bayliss EA, McQuillan DB, Ellis JL, Maciejewski ML, Zeng C, Barton MB, Boyd CM, Fortin M, Ling SM, Tai-Seale M, Ralston JD, Ritchie CS, Zulman DM. Using Electronic Health Record Data to Measure Care Quality for Individuals with Multiple Chronic Medical Conditions. J Am Geriatr Soc. 2016 09; 64(9):1839-44. View on Pubmed
  88. Smith AK, Ritchie CS, Miao Y, Boscardin WJ, Wallhagen ML. Self-Reported Hearing in the Last 2 Years of Life in Older Adults. J Am Geriatr Soc. 2016 07; 64(7):1486-91. View on Pubmed
  89. Agar MR, Quinn SJ, Crawford GB, Ritchie CS, Phillips JL, Collier A, Currow DC. Predictors of Mortality for Delirium in Palliative Care. J Palliat Med. 2016 11; 19(11):1205-1209. View on Pubmed
  90. Cenzer IS, Tang V, Boscardin WJ, Smith AK, Ritchie C, Wallhagen MI, Espaldon R, Covinsky KE. One-Year Mortality After Hip Fracture: Development and Validation of a Prognostic Index. J Am Geriatr Soc. 2016 09; 64(9):1863-8. View on Pubmed
  91. Fathi R, Sheehan OC, Garrigues SK, Saliba D, Leff B, Ritchie CS. Development of an Interdisciplinary Team Communication Framework and Quality Metrics for Home-Based Medical Care Practices. J Am Med Dir Assoc. 2016 08 01; 17(8):725-729.e10. View on Pubmed
  92. Smith AK, Ritchie CS, Wallhagen ML. Hearing Loss in Hospice and Palliative Care: A National Survey of Providers. J Pain Symptom Manage. 2016 08; 52(2):254-8. View on Pubmed
  93. Kelley AS, Covinsky KE, Gorges RJ, McKendrick K, Bollens-Lund E, Morrison RS, Ritchie CS. Identifying Older Adults with Serious Illness: A Critical Step toward Improving the Value of Health Care. Health Serv Res. 2017 02; 52(1):113-131. View on Pubmed
  94. Ritchie C, Andersen R, Eng J, Garrigues SK, Intinarelli G, Kao H, Kawahara S, Patel K, Sapiro L, Thibault A, Tunick E, Barnes DE. Implementation of an Interdisciplinary, Team-Based Complex Care Support Health Care Model at an Academic Medical Center: Impact on Health Care Utilization and Quality of Life. PLoS One. 2016; 11(2):e0148096. View on Pubmed
  95. Kamal AH, Bull J, Ritchie CS, Kutner JS, Hanson LC, Friedman F, Taylor DH. Adherence to Measuring What Matters Measures Using Point-of-Care Data Collection Across Diverse Clinical Settings. J Pain Symptom Manage. 2016 Mar; 51(3):497-503. View on Pubmed
  96. Wright AA, Keating NL, Ayanian JZ, Chrischilles EA, Kahn KL, Ritchie CS, Weeks JC, Earle CC, Landrum MB. Family Perspectives on Aggressive Cancer Care Near the End of Life. JAMA. 2016 Jan 19; 315(3):284-92. View on Pubmed
  97. Aisen P, Touchon J, Andrieu S, Boada M, Doody R, Nosheny RL, Langbaum JB, Schneider L, Hendrix S, Wilcock G, Molinuevo JL, Ritchie C, Ousset PJ, Cummings J, Sperling R, DeKosky ST, Lovestone S, Hampel H, Petersen R, Legrand V, Egan M, Randolph C, Salloway S, Weiner M, Vellas B. Registries and Cohorts to Accelerate Early Phase Alzheimer's Trials. A Report from the E.U./U.S. Clinical Trials in Alzheimer's Disease Task Force. J Prev Alzheimers Dis. 2016; 3(2):68-74. View on Pubmed
  98. Smith AK, Cenzer IS, John Boscardin W, Ritchie CS, Wallhagen ML, Covinsky KE. Increase in Disability Prevalence Before Hip Fracture. J Am Geriatr Soc. 2015 Oct; 63(10):2029-35. View on Pubmed
  99. Rabow MW, Dahlin C, Calton B, Bischoff K, Ritchie C. New Frontiers in Outpatient Palliative Care for Patients With Cancer. Cancer Control. 2015 Oct; 22(4):465-74. View on Pubmed
  100. Kutner JS, Ritchie CS, Abernethy AP. Selecting the Optimal Design for Drug Discontinuation Trials in a Setting of Advanced, Life-Limiting Illness-Reply. JAMA Intern Med. 2015 Oct; 175(10):1725-6. View on Pubmed
  101. Bakitas MA, Elk R, Astin M, Ceronsky L, Clifford KN, Dionne-Odom JN, Emanuel LL, Fink RM, Kvale E, Levkoff S, Ritchie C, Smith T. Systematic Review of Palliative Care in the Rural Setting. Cancer Control. 2015 Oct; 22(4):450-64. View on Pubmed
  102. McNeil MJ, Kamal AH, Kutner JS, Ritchie CS, Abernethy AP. The Burden of Polypharmacy in Patients Near the End of Life. J Pain Symptom Manage. 2016 Feb; 51(2):178-83.e2. View on Pubmed
  103. Nikolich-Žugich J, Goldman DP, Cohen PR, Cortese D, Fontana L, Kennedy BK, Mohler MJ, Olshansky SJ, Perls T, Perry D, Richardson A, Ritchie C, Wertheimer AM, Faragher RG, Fain MJ. Preparing for an Aging World: Engaging Biogerontologists, Geriatricians, and the Society. J Gerontol A Biol Sci Med Sci. 2016 Apr; 71(4):435-44. View on Pubmed
  104. Stephens C, Halifax E, Bui N, Lee SJ, Harrington C, Shim J, Ritchie C. Provider Perspectives on the Influence of Family on Nursing Home Resident Transfers to the Emergency Department: Crises at the End of Life. Curr Gerontol Geriatr Res. 2015; 2015:893062. View on Pubmed
  105. Ornstein KA, Leff B, Covinsky KE, Ritchie CS, Federman AD, Roberts L, Kelley AS, Siu AL, Szanton SL. Epidemiology of the Homebound Population in the United States. JAMA Intern Med. 2015 Jul; 175(7):1180-6. View on Pubmed
  106. Chang A, Ritchie C. Patient-Centered Models of Care: Closing the Gaps in Physician Readiness. J Gen Intern Med. 2015 Jul; 30(7):870-2. View on Pubmed
  107. Ritchie CS, Rabow MW. Fostering a Quality of Care Culture in Community-Based Palliative Care: What Will It Take? J Palliat Med. 2015 Jul; 18(7):568-9. View on Pubmed
  108. Leff B, Weston CM, Garrigues S, Patel K, Ritchie C. Home-based primary care practices in the United States: current state and quality improvement approaches. J Am Geriatr Soc. 2015 May; 63(5):963-9. View on Pubmed
  109. Kutner JS, Blatchford PJ, Taylor DH, Ritchie CS, Bull JH, Fairclough DL, Hanson LC, LeBlanc TW, Samsa GP, Wolf S, Aziz NM, Currow DC, Ferrell B, Wagner-Johnston N, Zafar SY, Cleary JF, Dev S, Goode PS, Kamal AH, Kassner C, Kvale EA, McCallum JG, Ogunseitan AB, Pantilat SZ, Portenoy RK, Prince-Paul M, Sloan JA, Swetz KM, Von Gunten CF, Abernethy AP. Safety and benefit of discontinuing statin therapy in the setting of advanced, life-limiting illness: a randomized clinical trial. JAMA Intern Med. 2015 May; 175(5):691-700. View on Pubmed
  110. Zulman DM, Pal Chee C, Wagner TH, Yoon J, Cohen DM, Holmes TH, Ritchie C, Asch SM. Multimorbidity and healthcare utilisation among high-cost patients in the US Veterans Affairs Health Care System. BMJ Open. 2015 Apr 16; 5(4):e007771. View on Pubmed
  111. Currow DC, Clark K, Kamal A, Collier A, Agar MR, Lovell MR, Phillips JL, Ritchie C. The Population Burden of Chronic Symptoms that Substantially Predate the Diagnosis of a Life-Limiting Illness. J Palliat Med. 2015 Jun; 18(6):480-5. View on Pubmed
  112. Leff B, Saliba D, Ritchie C. Home-based care: the authors reply. Health Aff (Millwood). 2015 Apr; 34(4):716. View on Pubmed
  113. Merlin JS, Westfall AO, Chamot E, Saag M, Walcott M, Ritchie C, Kertesz S. Quantitative Evaluation of an Instrument to Identify Chronic Pain in HIV-Infected Individuals. AIDS Res Hum Retroviruses. 2015 Jun; 31(6):623-7. View on Pubmed
  114. Kvale EA, Meneses K, Demark-Wahnefried W, Bakitas M, Ritchie C. Formative research in the development of a care transition intervention in breast cancer survivors. Eur J Oncol Nurs. 2015 Aug; 19(4):329-35. View on Pubmed
  115. Miaskowski C, Dunn L, Ritchie C, Paul SM, Cooper B, Aouizerat BE, Alexander K, Skerman H, Yates P. Latent Class Analysis Reveals Distinct Subgroups of Patients Based on Symptom Occurrence and Demographic and Clinical Characteristics. J Pain Symptom Manage. 2015 Jul; 50(1):28-37. View on Pubmed
  116. Leff B, Ritchie C. Quality-of-care standards missing for the vulnerable homebound. Mod Healthc. 2015 Jan 26; 45(4):25. View on Pubmed
  117. Yates P, Miaskowski C, Cataldo JK, Paul SM, Cooper BA, Alexander K, Aouizerat B, Dunn L, Ritchie C, McCarthy A, Skerman H. Differences in Composition of Symptom Clusters Between Older and Younger Oncology Patients. J Pain Symptom Manage. 2015 Jun; 49(6):1025-34. View on Pubmed
  118. Leff B, Carlson CM, Saliba D, Ritchie C. The invisible homebound: setting quality-of-care standards for home-based primary and palliative care. Health Aff (Millwood). 2015 Jan; 34(1):21-9. View on Pubmed
  119. Phillips J, Dal Grande E, Ritchie C, Abernethy AP, Currow DC. A population-based cross-sectional study that defined normative population data for the Life-Space Mobility Assessment-composite score. J Pain Symptom Manage. 2015 May; 49(5):885-93. View on Pubmed
  120. Lee SJ, Ritchie CS, Yaffe K, Stijacic Cenzer I, Barnes DE. A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. PLoS One. 2014; 9(12):e113535. View on Pubmed
  121. Williams BA, Ahalt C, Stijacic-Cenzer I, Smith AK, Goldenson J, Ritchie CS. Pain behind bars: the epidemiology of pain in older jail inmates in a county jail. J Palliat Med. 2014 Dec; 17(12):1336-43. View on Pubmed
  122. Merlin JS, Walcott M, Ritchie C, Herbey I, Kertesz SG, Chamot E, Saag M, Turan JM. 'Two pains together': patient perspectives on psychological aspects of chronic pain while living with HIV. PLoS One. 2014; 9(11):e111765. View on Pubmed
  123. Steinman MA, Komaiko KD, Fung KZ, Ritchie CS. Use of opioids and other analgesics by older adults in the United States, 1999-2010. Pain Med. 2015 Feb; 16(2):319-27. View on Pubmed
  124. Sheppard KD, Ford CR, Sawyer P, Foley KT, Harada CN, Brown CJ, Ritchie CS. The interprofessional clinical experience: interprofessional education in the nursing home. J Interprof Care. 2015 Mar; 29(2):170-2. View on Pubmed
  125. Merlin JS, Turan JM, Herbey I, Westfall AO, Starrels JL, Kertesz SG, Saag MS, Ritchie CS. Aberrant drug-related behaviors: a qualitative analysis of medical record documentation in patients referred to an HIV/chronic pain clinic. Pain Med. 2014 Oct; 15(10):1724-33. View on Pubmed
  126. Mgbemena O, Westfall AO, Ritchie CS, Hicks J, Raper JL, Overton ET, Norton WE, Merlin JS. Preliminary outcomes of a pilot physical therapy program for HIV-infected patients with chronic pain. AIDS Care. 2015; 27(2):244-7. View on Pubmed
  127. Ford CR, Brown CJ, Sawyer P, Rothrock AG, Ritchie CS. Advancing geriatric education: development of an interprofessional program for health care faculty. Gerontol Geriatr Educ. 2015; 36(4):365-83. View on Pubmed
  128. Abernethy AP, Capell WH, Aziz NM, Ritchie C, Prince-Paul M, Bennett RE, Kutner JS. Ethical conduct of palliative care research: enhancing communication between investigators and institutional review boards. J Pain Symptom Manage. 2014 Dec; 48(6):1211-21. View on Pubmed
  129. Dhruva A, Aouizerat BE, Cooper B, Paul SM, Dodd M, West C, Wara W, Lee K, Dunn LB, Langford DJ, Merriman JD, Baggott C, Cataldo J, Ritchie C, Kober KM, Leutwyler H, Miaskowski C. Cytokine gene associations with self-report ratings of morning and evening fatigue in oncology patients and their family caregivers. Biol Res Nurs. 2015 Mar; 17(2):175-84. View on Pubmed
  130. Kelley AS, Langa KM, Smith AK, Cagle J, Ornstein K, Silveira MJ, Nicholas L, Covinsky KE, Ritchie CS. Leveraging the health and retirement study to advance palliative care research. J Palliat Med. 2014 May; 17(5):506-11. View on Pubmed
  131. Merlin JS, Walcott MM, Herbey I, Chamot E, Ritchie C, Saag MS, Kertesz S. Qualitative investigation of a Brief Chronic Pain Screening tool in HIV-infected patients. AIDS Patient Care STDS. 2014 Apr; 28(4):176-82. View on Pubmed
  132. Buys DR, Roth DL, Ritchie CS, Sawyer P, Allman RM, Funkhouser EM, Hovater M, Locher JL. Nutritional risk and body mass index predict hospitalization, nursing home admissions, and mortality in community-dwelling older adults: results from the UAB Study of Aging with 8.5 years of follow-up. J Gerontol A Biol Sci Med Sci. 2014 Sep; 69(9):1146-53. View on Pubmed
  133. Barnes DE, Cenzer IS, Yaffe K, Ritchie CS, Lee SJ. A point-based tool to predict conversion from mild cognitive impairment to probable Alzheimer's disease. Alzheimers Dement. 2014 Nov; 10(6):646-55. View on Pubmed
  134. Haas MC, Bodner EV, Brown CJ, Bryan D, Buys DR, Keita AD, Flagg LA, Goss A, Gower B, Hovater M, Hunter G, Ritchie CS, Roth DL, Wingo BC, Ard J, Locher JL. Calorie restriction in overweight seniors: response of older adults to a dieting study: the CROSSROADS randomized controlled clinical trial. J Nutr Gerontol Geriatr. 2014; 33(4):376-400. View on Pubmed
  135. Azuero CB, Harris GM, Allen RS, Williams BR, Kvale E, Ritchie CS. Team-based volunteerism with the seriously ill: a qualitative analysis from 10 volunteers' perspectives. J Soc Work End Life Palliat Care. 2014; 10(3):282-95. View on Pubmed
  136. Sadasivam RS, Luger TM, Coley HL, Taylor BB, Padir T, Ritchie CS, Houston TK. Robot-assisted home hazard assessment for fall prevention: a feasibility study. J Telemed Telecare. 2014 Jan; 20(1):3-10. View on Pubmed
  137. Merriman JD, Aouizerat BE, Cataldo JK, Dunn L, Cooper BA, West C, Paul SM, Baggott CR, Dhruva A, Kober K, Langford DJ, Leutwyler H, Ritchie CS, Abrams G, Dodd M, Elboim C, Hamolsky D, Melisko M, Miaskowski C. Association between an interleukin 1 receptor, type I promoter polymorphism and self-reported attentional function in women with breast cancer. Cytokine. 2014 Feb; 65(2):192-201. View on Pubmed
  138. Merlin JS, Westfall AO, Chamot E, Overton ET, Willig JH, Ritchie C, Saag MS, Mugavero MJ. Pain is independently associated with impaired physical function in HIV-infected patients. Pain Med. 2013 Dec; 14(12):1985-93. View on Pubmed
  139. Ritchie CS, Hearld KR, Gross A, Allman R, Sawyer P, Sheppard K, Salanitro A, Locher J, Brown CJ, Roth DL. Measuring symptoms in community-dwelling older adults: the psychometric properties of a brief symptom screen. Med Care. 2013 Oct; 51(10):949-55. View on Pubmed
  140. Molony E, Westfall AO, Perry BA, Tucker R, Ritchie C, Saag M, Mugavero M, Sullivan JC, Merlin JS. Low back pain and associated imaging findings among HIV-infected patients referred to an HIV/palliative care clinic. Pain Med. 2014 Mar; 15(3):418-24. View on Pubmed
  141. Ritchie CS. Symptom burden: in need of more attention and more evidence. JAMA Intern Med. 2013 Sep 09; 173(16):1541-2. View on Pubmed
  142. Locher JL, Vickers KS, Buys DR, Ellis A, Lawrence JC, Newton LE, Roth DL, Ritchie CS, Bales CW. A randomized controlled trial of a theoretically-based behavioral nutrition intervention for community elders: lessons learned from the Behavioral Nutrition Intervention for Community Elders Study. J Acad Nutr Diet. 2013 Dec; 113(12):1675-82. View on Pubmed
  143. Dhruva A, Aouizerat BE, Cooper B, Paul SM, Dodd M, West C, Wara W, Lee K, Dunn LB, Langford DJ, Merriman JD, Baggott C, Cataldo J, Ritchie C, Kober K, Leutwyler H, Miaskowski C. Differences in morning and evening fatigue in oncology patients and their family caregivers. Eur J Oncol Nurs. 2013 Dec; 17(6):841-8. View on Pubmed
  144. Sheppard KD, Sawyer P, Ritchie CS, Allman RM, Brown CJ. Life-space mobility predicts nursing home admission over 6 years. J Aging Health. 2013 Sep; 25(6):907-20. View on Pubmed
  145. Ritchie CS. Ushering in an era of community-based palliative care. J Palliat Med. 2013 Aug; 16(8):818-9. View on Pubmed
  146. Ritchie C, Dunn LB, Paul SM, Cooper BA, Skerman H, Merriman JD, Aouizerat B, Alexander K, Yates P, Cataldo J, Miaskowski C. Differences in the symptom experience of older oncology outpatients. J Pain Symptom Manage. 2014 Apr; 47(4):697-709. View on Pubmed
  147. LeBlanc TW, Kutner JS, Ritchie CS, Abernethy AP. Discontinuation of statins in routine care settings. Ann Intern Med. 2013 Jul 02; 159(1):74-5. View on Pubmed
  148. Ritchie CS, Zulman DM. Research priorities in geriatric palliative care: multimorbidity. J Palliat Med. 2013 Aug; 16(8):843-7. View on Pubmed
  149. Ford CR, Foley KT, Ritchie CS, Sheppard K, Sawyer P, Swanson M, Harada CN, Brown CJ. Creation of an interprofessional clinical experience for healthcare professions trainees in a nursing home setting. Med Teach. 2013 Jul; 35(7):544-8. View on Pubmed
  150. Bowling CB, Booth JN, Safford MM, Whitson HE, Ritchie CS, Wadley VG, Cushman M, Howard VJ, Allman RM, Muntner P. Nondisease-specific problems and all-cause mortality in the REasons for Geographic and Racial Differences in Stroke study. J Am Geriatr Soc. 2013 May; 61(5):739-46. View on Pubmed
  151. Merlin JS, Zinski A, Norton WE, Ritchie CS, Saag MS, Mugavero MJ, Treisman G, Hooten WM. A conceptual framework for understanding chronic pain in patients with HIV. Pain Pract. 2014 Mar; 14(3):207-16. View on Pubmed
  152. Perry BA, Westfall AO, Molony E, Tucker R, Ritchie C, Saag MS, Mugavero MJ, Merlin JS. Characteristics of an ambulatory palliative care clinic for HIV-infected patients. J Palliat Med. 2013 Aug; 16(8):934-7. View on Pubmed
  153. Merriman JD, Aouizerat BE, Langford DJ, Cooper BA, Baggott CR, Cataldo JK, Dhruva A, Dunn L, West C, Paul SM, Ritchie CS, Swift PS, Miaskowski C. Preliminary evidence of an association between an interleukin 6 promoter polymorphism and self-reported attentional function in oncology patients and their family caregivers. Biol Res Nurs. 2014 Apr; 16(2):152-9. View on Pubmed
  154. Ritchie CS, Currow DC, Abernethy AP, Kutner JS. Multisite studies offer a solution to recruitment challenges in palliative care studies. J Palliat Med. 2013 Mar; 16(3):225. View on Pubmed
  155. Boyd C, Ritchie C, McNabney M. Response to bernabeu-wittel and colleagues. J Am Geriatr Soc. 2013 Mar; 61(3):476-7. View on Pubmed
  156. Locher JL, Bonner JA, Carroll WR, Caudell JJ, Allison JJ, Kilgore ML, Ritchie CS, Tajeu GS, Yuan Y, Roth DL. Patterns of prophylactic gastrostomy tube placement in head and neck cancer patients: a consideration of the significance of social support and practice variation. Laryngoscope. 2013 Aug; 123(8):1918-25. View on Pubmed
  157. Cataldo JK, Paul S, Cooper B, Skerman H, Alexander K, Aouizerat B, Blackman V, Merriman J, Dunn L, Ritchie C, Yates P, Miaskowski C. Differences in the symptom experience of older versus younger oncology outpatients: a cross-sectional study. BMC Cancer. 2013 Jan 03; 13:6. View on Pubmed
  158. Kim DJ, Westfall AO, Chamot E, Willig AL, Mugavero MJ, Ritchie C, Burkholder GA, Crane HM, Raper JL, Saag MS, Willig JH. Multimorbidity patterns in HIV-infected patients: the role of obesity in chronic disease clustering. J Acquir Immune Defic Syndr. 2012 Dec 15; 61(5):600-5. View on Pubmed
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  161. Merlin JS, Westfall AO, Raper JL, Zinski A, Norton WE, Willig JH, Gross R, Ritchie CS, Saag MS, Mugavero MJ. Pain, mood, and substance abuse in HIV: implications for clinic visit utilization, antiretroviral therapy adherence, and virologic failure. J Acquir Immune Defic Syndr. 2012 Oct 01; 61(2):164-70. View on Pubmed
  162. Levy MH, Adolph MD, Back A, Block S, Codada SN, Dalal S, Deshields TL, Dexter E, Dy SM, Knight SJ, Misra S, Ritchie CS, Sauer TM, Smith T, Spiegel D, Sutton L, Taylor RM, Temel J, Thomas J, Tickoo R, Urba SG, Von Roenn JH, Weems JL, Weinstein SM, Freedman-Cass DA, Bergman MA. Palliative care. J Natl Compr Canc Netw. 2012 Oct 01; 10(10):1284-309. View on Pubmed
  163. Salanitro AH, Hovater M, Hearld KR, Roth DL, Sawyer P, Locher JL, Bodner E, Brown CJ, Allman RM, Ritchie CS. Symptom burden predicts hospitalization independent of comorbidity in community-dwelling older adults. J Am Geriatr Soc. 2012 Sep; 60(9):1632-7. View on Pubmed
  164. Ritchie C, Richman J, Sobko H, Bodner E, Phillips B, Houston T. The E-coach transition support computer telephony implementation study: protocol of a randomized trial. Contemp Clin Trials. 2012 Nov; 33(6):1172-9. View on Pubmed
  165. Martin MY, Sanders S, Griffin JM, Oster RA, Ritchie C, Phelan SM, Atienza AA, Kahn K, van Ryn M. Racial variation in the cancer caregiving experience: a multisite study of colorectal and lung cancer caregivers. Cancer Nurs. 2012 Jul-Aug; 35(4):249-56. View on Pubmed
  166. Ritchie C, Dann L, Ford P. Shared learning for oral health therapy and dental students: enhanced understanding of roles and responsibilities through interprofessional education. Eur J Dent Educ. 2013 Feb; 17(1):e56-63. View on Pubmed
  167. Magnuson JS, Durst J, Rosenthal EL, Carroll WR, Ritchie CS, Kilgore ML, Locher JL. Increased likelihood of long-term gastrostomy tube dependence in head and neck cancer survivors without partners. Head Neck. 2013 Mar; 35(3):420-5. View on Pubmed
  168. Salanitro AH, Ritchie CS, Hovater M, Roth DL, Sawyer P, Locher JL, Bodner E, Brown CJ, Allman RM. Inflammatory biomarkers as predictors of hospitalization and death in community-dwelling older adults. Arch Gerontol Geriatr. 2012 May-Jun; 54(3):e387-91. View on Pubmed
  169. Ritchie CS, Kvale E, Fisch MJ. Multimorbidity: an issue of growing importance for oncologists. J Oncol Pract. 2011 Nov; 7(6):371-4. View on Pubmed
  170. Ritchie CS, Roth DL, Allman RM. Living with an aging parent: "It was a beautiful invitation". JAMA. 2011 Aug 17; 306(7):746-53. View on Pubmed
  171. Kamal AH, Currow DC, Ritchie C, Bull J, Wheeler JL, Abernethy AP. The value of data collection within a palliative care program. Curr Oncol Rep. 2011 Aug; 13(4):308-15. View on Pubmed
  172. Joshipura KJ, Andriankaja MO, Hu FB, Ritchie CS. Relative utility of 1-h Oral Glucose Tolerance Test as a measure of abnormal glucose homeostasis. Diabetes Res Clin Pract. 2011 Aug; 93(2):268-275. View on Pubmed
  173. Chittenden EH, Ritchie CS. Work-life balancing: challenges and strategies. J Palliat Med. 2011 Jul; 14(7):870-4. View on Pubmed
  174. Locher JL, Bonner JA, Carroll WR, Caudell JJ, Kilgore ML, Ritchie CS, Roth DL, Tajeu GS, Yuan Y, Allison JJ. Gastrostomy tube placement and use in patients with head and neck cancer. Head Neck. 2012 Mar; 34(3):422-8. View on Pubmed
  175. Locher JL, Bonner JA, Carroll WR, Caudell JJ, Keith JN, Kilgore ML, Ritchie CS, Roth DL, Tajeu GS, Allison JJ. Prophylactic percutaneous endoscopic gastrostomy tube placement in treatment of head and neck cancer: a comprehensive review and call for evidence-based medicine. JPEN J Parenter Enteral Nutr. 2011 May; 35(3):365-74. View on Pubmed
  176. Jenkins TM, Chapman KL, Ritchie CS, Arnett DK, McGwin G, Cofield SS, Maetz HM. Hospice use in Alabama, 2002-2005. J Pain Symptom Manage. 2011 Feb; 41(2):374-82. View on Pubmed
  177. Locher JL, Bales CW, Ellis AC, Lawrence JC, Newton L, Ritchie CS, Roth DL, Buys DL, Vickers KS. A theoretically based Behavioral Nutrition Intervention for Community Elders at high risk: the B-NICE randomized controlled clinical trial. J Nutr Gerontol Geriatr. 2011; 30(4):384-402. View on Pubmed
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  179. De Sousa M, Smith D, Corcoran A, Bailey FA, Furman C, Ritchie C, Rosenfeld K, Shreve S, Casarett D. Families' perceptions of inpatient and home hospice care at end-of-life. Arch Intern Med. 2010 Nov 08; 170(20):1856-7. View on Pubmed
  180. Yang Y, Brown CJ, Burgio KL, Kilgore ML, Ritchie CS, Roth DL, West DS, Locher JL. Undernutrition at baseline and health services utilization and mortality over a 1-year period in older adults receiving Medicare home health services. J Am Med Dir Assoc. 2011 May; 12(4):287-94. View on Pubmed
  181. Locher JL, Robinson CO, Bailey FA, Carroll WR, Heimburger DC, Saif MW, Tajeu G, Ritchie CS. Disruptions in the organization of meal preparation and consumption among older cancer patients and their family caregivers. Psychooncology. 2010 Sep; 19(9):967-74. View on Pubmed
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  184. Kvale E, Ekundayo OJ, Zhang Y, Akhter S, Aban I, Love TE, Ritchie C, Ahmed A. History of cancer and mortality in community-dwelling older adults. Cancer Epidemiol. 2011 Feb; 35(1):30-6. View on Pubmed
  185. Lu H, Trancik E, Bailey FA, Ritchie C, Rosenfeld K, Shreve S, Furman C, Smith D, Wolff C, Casarett D. Families' perceptions of end-of-life care in Veterans Affairs versus non-Veterans Affairs facilities. J Palliat Med. 2010 Aug; 13(8):991-6. View on Pubmed
  186. Sun Y, Roth DL, Ritchie CS, Burgio KL, Locher JL. Reliability and predictive validity of energy intake measures from the 24-hour dietary recalls of homebound older adults. J Am Diet Assoc. 2010 May; 110(5):773-8. View on Pubmed
  187. Bruera E, Billings JA, Lupu D, Ritchie CS. AAHPM position paper: requirements for the successful development of academic palliative care programs. J Pain Symptom Manage. 2010 Apr; 39(4):743-55. View on Pubmed
  188. Alici Y, Smith D, Lu HL, Bailey A, Shreve S, Rosenfeld K, Ritchie C, Casarett DJ. Families' perceptions of veterans' distress due to post-traumatic stress disorder-related symptoms at the end of life. J Pain Symptom Manage. 2010 Mar; 39(3):507-14. View on Pubmed
  189. Ahmed AA, Hays CI, Liu B, Aban IB, Sims RV, Aronow WS, Ritchie CS, Ahmed A. Predictors of in-hospital mortality among hospitalized nursing home residents: an analysis of the National Hospital Discharge Surveys 2005-2006. J Am Med Dir Assoc. 2010 Jan; 11(1):52-8. View on Pubmed
  190. Tilden LB, Williams BR, Tucker RO, MacLennan PA, Ritchie CS. Surgeons' attitudes and practices in the utilization of palliative and supportive care services for patients with a sudden advanced illness. J Palliat Med. 2009 Nov; 12(11):1037-42. View on Pubmed
  191. Locher JL, Ritchie CS, Roth DL, Sen B, Vickers KS, Vailas LI. Food choice among homebound older adults: motivations and perceived barriers. J Nutr Health Aging. 2009 Oct; 13(8):659-64. View on Pubmed
  192. Joshipura K, Zevallos JC, Ritchie CS. Strength of evidence relating periodontal disease and atherosclerotic disease. Compend Contin Educ Dent. 2009 Sep; 30(7):430-9. View on Pubmed
  193. Locher JL, Robinson CO, Bailey FA, Carroll WR, Heimburger DC, Magnuson JS, Saif MW, Ritchie CS. The contribution of social factors to undereating in older adults with cancer. J Support Oncol. 2009 Sep-Oct; 7(5):168-73. View on Pubmed
  194. Kvale EA, Clay OJ, Ross-Meadows LA, McGee JS, Edwards JD, Unverzagt FW, Ritchie CS, Ball KK. Cognitive speed of processing and functional declines in older cancer survivors: an analysis of data from the ACTIVE trial. Eur J Cancer Care (Engl). 2010 Jan 01; 19(1):110-7. View on Pubmed
  195. Herman AD, Johnson TM, Ritchie CS, Parmelee PA. Pain management interventions in the nursing home: a structured review of the literature. J Am Geriatr Soc. 2009 Jul; 57(7):1258-67. View on Pubmed
  196. Ritchie C, Ekundayo OJ, Muchimba M, Campbell RC, Frank SJ, Liu B, Aban IB, Ahmed A. Effects of diabetes mellitus in patients with heart failure and chronic kidney disease: a propensity-matched study of multimorbidity in chronic heart failure. Int J Cardiol. 2009 May 29; 134(3):330-5. View on Pubmed
  197. Ritchie CS. Mechanistic links between type 2 diabetes and periodontitis. J Dent. 2009 Aug; 37(8):S578-9. View on Pubmed
  198. Levy MH, Back A, Benedetti C, Billings JA, Block S, Boston B, Bruera E, Dy S, Eberle C, Foley KM, Karver SB, Knight SJ, Misra S, Ritchie CS, Spiegel D, Sutton L, Urba S, Von Roenn JH, Weinstein SM. NCCN clinical practice guidelines in oncology: palliative care. J Natl Compr Canc Netw. 2009 Apr; 7(4):436-73. View on Pubmed
  199. Brown CJ, Roth DL, Allman RM, Sawyer P, Ritchie CS, Roseman JM. Trajectories of life-space mobility after hospitalization. Ann Intern Med. 2009 Mar 17; 150(6):372-8. View on Pubmed
  200. Kilgore ML, Grabowski DC, Morrisey MA, Ritchie CS, Yun H, Locher JL. The effects of the Balanced Budget Act of 1997 on home health and hospice in older adult cancer patients. Med Care. 2009 Mar; 47(3):279-85. View on Pubmed
  201. Ekundayo OJ, Muchimba M, Aban IB, Ritchie C, Campbell RC, Ahmed A. Multimorbidity due to diabetes mellitus and chronic kidney disease and outcomes in chronic heart failure. Am J Cardiol. 2009 Jan 01; 103(1):88-92. View on Pubmed
  202. Ritchie CS, Wieland D. Advanced illness care in older adults: many lessons yet to be learned. J Gerontol A Biol Sci Med Sci. 2008 Sep; 63(9):949-50. View on Pubmed
  203. Boyd CM, Ritchie CS, Tipton EF, Studenski SA, Wieland D. From Bedside to Bench: summary from the American Geriatrics Society/National Institute on Aging Research Conference on Comorbidity and Multiple Morbidity in Older Adults. Aging Clin Exp Res. 2008 Jun; 20(3):181-8. View on Pubmed
  204. Locher JL, Ritchie CS, Robinson CO, Roth DL, Smith West D, Burgio KL. A multidimensional approach to understanding under-eating in homebound older adults: the importance of social factors. Gerontologist. 2008 Apr; 48(2):223-34. View on Pubmed
  205. Casarett D, Pickard A, Bailey FA, Ritchie C, Furman C, Rosenfeld K, Shreve S, Chen Z, Shea JA. Do palliative consultations improve patient outcomes? J Am Geriatr Soc. 2008 Apr; 56(4):593-9. View on Pubmed
  206. Casarett D, Pickard A, Bailey FA, Ritchie CS, Furman CD, Rosenfeld K, Shreve S, Shea J. A nationwide VA palliative care quality measure: the family assessment of treatment at the end of life. J Palliat Med. 2008 Jan-Feb; 11(1):68-75. View on Pubmed
  207. Ritchie CS, Locher JL, Roth DL, McVie T, Sawyer P, Allman R. Unintentional weight loss predicts decline in activities of daily living function and life-space mobility over 4 years among community-dwelling older adults. J Gerontol A Biol Sci Med Sci. 2008 Jan; 63(1):67-75. View on Pubmed
  208. Locher JL, Roth DL, Ritchie CS, Cox K, Sawyer P, Bodner EV, Allman RM. Body mass index, weight loss, and mortality in community-dwelling older adults. J Gerontol A Biol Sci Med Sci. 2007 Dec; 62(12):1389-92. View on Pubmed
  209. Casarett D, Pickard A, Amos Bailey F, Ritchie C, Furman C, Rosenfeld K, Shreve S, Shea JA. Important aspects of end-of-life care among veterans: implications for measurement and quality improvement. J Pain Symptom Manage. 2008 Feb; 35(2):115-25. View on Pubmed
  210. Ritchie CS, Wilcox CM, Kvale E. Ethical and medicolegal issues related to percutaneous endoscopic gastrostomy placement. Gastrointest Endosc Clin N Am. 2007 Oct; 17(4):805-15. View on Pubmed
  211. Makhija SK, Gilbert GH, Litaker MS, Allman RM, Sawyer P, Locher JL, Ritchie CS. Association between aspects of oral health-related quality of life and body mass index in community-dwelling older adults. J Am Geriatr Soc. 2007 Nov; 55(11):1808-16. View on Pubmed
  212. Ritchie C. Health care quality and multimorbidity: the jury is still out. Med Care. 2007 Jun; 45(6):477-9. View on Pubmed
  213. Ahmed A, Aban IB, Vaccarino V, Lloyd-Jones DM, Goff DC, Zhao J, Love TE, Ritchie C, Ovalle F, Gambassi G, Dell'Italia LJ. A propensity-matched study of the effect of diabetes on the natural history of heart failure: variations by sex and age. Heart. 2007 Dec; 93(12):1584-90. View on Pubmed
  214. Ritchie CS, Wieland GD. Improving end-of-life care for older adults: an international challenge. J Gerontol A Biol Sci Med Sci. 2007 Apr; 62(4):393-4. View on Pubmed
  215. Downing M, Lau F, Lesperance M, Karlson N, Shaw J, Kuziemsky C, Bernard S, Hanson L, Olajide L, Head B, Ritchie C, Harrold J, Casarett D. Meta-analysis of survival prediction with Palliative Performance Scale. J Palliat Care. 2007; 23(4):245-52; discussion 252-4. View on Pubmed
  216. Enwonwu CO, Ritchie CS. Nutrition and inflammatory markers. J Am Dent Assoc. 2007 Jan; 138(1):70-3. View on Pubmed
  217. Ritchie CS. Obesity and periodontal disease. Periodontol 2000. 2007; 44:154-63. View on Pubmed
  218. Sawyer P, Bodner EV, Ritchie CS, Allman RM. Pain and pain medication use in community-dwelling older adults. Am J Geriatr Pharmacother. 2006 Dec; 4(4):316-24. View on Pubmed
  219. Pfeifer MP, Ritchie C, Scharfenberger J, Keeney C, Hermann C, Berwick M, Head B. The Caring Connections Project: Providing palliative care to Medicaid patients with advanced cancer. Lippincotts Case Manag. 2006 Nov-Dec; 11(6):318-26. View on Pubmed
  220. Makhija SK, Gilbert GH, Boykin MJ, Litaker MS, Allman RM, Baker PS, Locher JL, Ritchie CS. The relationship between sociodemographic factors and oral health-related quality of life in dentate and edentulous community-dwelling older adults. J Am Geriatr Soc. 2006 Nov; 54(11):1701-12. View on Pubmed
  221. Higgins TS, Ritchie CS, Stetson BA, Burke JD, Looney SW. An examination of the moderating effect of treatment with anti-depressants on the association of heart disease with depression in males with type 2 diabetes attending a Veterans Affairs Medical Center. Diabetes Res Clin Pract. 2007 Feb; 75(2):220-8. View on Pubmed
  222. Furman CD, Head B, Lazor B, Casper B, Ritchie CS. Evaluation of an educational intervention to encourage advance directive discussions between medicine residents and patients. J Palliat Med. 2006 Aug; 9(4):964-7. View on Pubmed
  223. Locher JL, Kilgore ML, Morrisey MA, Ritchie CS. Patterns and predictors of home health and hospice use by older adults with cancer. J Am Geriatr Soc. 2006 Aug; 54(8):1206-11. View on Pubmed
  224. Locher JL, Bronstein J, Robinson CO, Williams C, Ritchie CS. Ethical issues involving research conducted with homebound older adults. Gerontologist. 2006 Apr; 46(2):160-4. View on Pubmed
  225. McClave SA, Ritchie CS. The role of endoscopically placed feeding or decompression tubes. Gastroenterol Clin North Am. 2006 Mar; 35(1):83-100. View on Pubmed
  226. Locher JL, Robinson CO, Roth DL, Ritchie CS, Burgio KL. The effect of the presence of others on caloric intake in homebound older adults. J Gerontol A Biol Sci Med Sci. 2005 Nov; 60(11):1475-8. View on Pubmed
  227. Head B, Ritchie CS, Smoot TM. Prognostication in hospice care: can the palliative performance scale help? J Palliat Med. 2005 Jun; 8(3):492-502. View on Pubmed
  228. Ritchie CS, Gohmann SF, McKinney WP. Does use of CAM for specific health problems increase with reduced access to care? J Med Syst. 2005 Apr; 29(2):143-53. View on Pubmed
  229. Ritchie C, Trost SG, Brown W, Armit C. Reliability and validity of physical fitness field tests for adults aged 55 to 70 years. J Sci Med Sport. 2005 Mar; 8(1):61-70. View on Pubmed
  230. Locher JL, Ritchie CS, Roth DL, Baker PS, Bodner EV, Allman RM. Social isolation, support, and capital and nutritional risk in an older sample: ethnic and gender differences. Soc Sci Med. 2005 Feb; 60(4):747-61. View on Pubmed
  231. Joshipura KJ, Ritchie C. Can the relation between tooth loss and chronic disease be explained by socio-economic status? Eur J Epidemiol. 2005; 20(3):203-4. View on Pubmed
  232. Bass Iii PF, Stetson BA, Rising W, Wesley GC, Ritchie CS. Development and Evaluation of a Nutrition and Physical Activity Counseling Module for First-Year Medical Students. Med Educ Online. 2004 Dec; 9(1):4359. View on Pubmed
  233. Head B, Ritchie CS, Scharfenberger J, Keeney C, Hermann C, Pfeifer M. Kentucky's palliative care report card. J Ky Med Assoc. 2004 Feb; 102(2):57-65. View on Pubmed
  234. Head B, Ritchie C. Researching end-of-life care: challenges, strategies, and opportunities. Home Healthc Nurse. 2004 Jan; 22(1):37-44. View on Pubmed
  235. Tanwani LK, Furman CD, Ritchie CS. Diagnostic challenges in Creutzfeldt-Jakob disease: case report. South Med J. 2003 Aug; 96(8):832-5. View on Pubmed
  236. Ritchie CS, Kinane DF. Nutrition, inflammation, and periodontal disease. Nutrition. 2003 May; 19(5):475-6. View on Pubmed
  237. Ritchie CS. Oral health, taste, and olfaction. Clin Geriatr Med. 2002 Nov; 18(4):709-17. View on Pubmed
  238. Ritchie CS, McClave SA. Part II. Common nutritional issues in older adults. Dis Mon. 2002 Nov; 48(11):713-24. View on Pubmed
  239. Ritchie C, Wieland D, Tully C, Rowe J, Sims R, Bodner E. Coordination and advocacy for rural elders (CARE): a model of rural case management with veterans. Gerontologist. 2002 Jun; 42(3):399-405. View on Pubmed
  240. Ritchie CS, Stetson BA, Bass PF, Adams KJ. Talking to patients about aerobic exercise for disease prevention: an educational exercise for medical students. Nutr Clin Care. 2002 May-Jun; 5(3):103-14. View on Pubmed
  241. Bales CW, Ritchie CS. Sarcopenia, weight loss, and nutritional frailty in the elderly. Annu Rev Nutr. 2002; 22:309-23. View on Pubmed
  242. Ritchie CS, Joshipura K, Hung HC, Douglass CW. Nutrition as a mediator in the relation between oral and systemic disease: associations between specific measures of adult oral health and nutrition outcomes. Crit Rev Oral Biol Med. 2002; 13(3):291-300. View on Pubmed
  243. Ritchie C, Foster G, Gunn G, Pearce M, Mather H. Salmonella typhimurium DT170 in cattle. Vet Rec. 2001 Nov 17; 149(20):631. View on Pubmed
  244. Millen BE, Silliman RA, Cantey-Kiser J, Copenhafer DL, Ewart CV, Ritchie CS, Quatromoni PA, Kirkland JL, Chipkin SR, Fearon NA, Lund ME, Garcia PI, Barry PP. Nutritional risk in an urban homebound older population. The nutrition and healthy aging project. J Nutr Health Aging. 2001; 5(4):269-77. View on Pubmed
  245. Ritchie CS, Joshipura K, Silliman RA, Miller B, Douglas CW. Oral health problems and significant weight loss among community-dwelling older adults. J Gerontol A Biol Sci Med Sci. 2000 Jul; 55(7):M366-71. View on Pubmed
  246. McClave SA, Ritchie CS. Artificial nutrition in pancreatic disease: what lessons have we learned from the literature? Clin Nutr. 2000 Feb; 19(1):1-6. View on Pubmed
  247. Joshipura K, Ritchie C, Douglass C. Strength of evidence linking oral conditions and systemic disease. Compend Contin Educ Dent Suppl. 2000; (30):12-23; quiz 65. View on Pubmed
  248. Ritchie CS, Dennis CS. Research challenges to recruitment and retention in a study of homebound older adults: lessons learned from the nutritional and dental screening program. Care Manag J. 1999; 1(1):55-61. View on Pubmed
  249. Sullivan GM, Boling PA, Ritchie C, Levine S. Curriculum recommendations for resident training in home care. J Am Geriatr Soc. 1998 Jul; 46(7):910-2. View on Pubmed
  250. Ritchie CS, Burgio KL, Locher JL, Cornwell A, Thomas D, Hardin M, Redden D. Nutritional status of urban homebound older adults. Am J Clin Nutr. 1997 Oct; 66(4):815-8. View on Pubmed
  251. Morgan JM, Carmichael AJ, Ritchie C. Extramammary Paget's disease of the axilla with an underlying apocrine carcinoma. Acta Derm Venereol. 1996 Mar; 76(2):173-4. View on Pubmed
  252. Thomas DR, Ritchie CS. Preoperative assessment of older adults. J Am Geriatr Soc. 1995 Jul; 43(7):811-21. View on Pubmed
  253. Fernandes-Costa FJ, Marshall J, Ritchie C, van Tonder SV, Dunn DS, Jenkins T, Metz J. Transition from a hunter-gatherer to a settled lifestyle in the !Kung San: effect on iron, folate, and vitamin B12 nutrition. Am J Clin Nutr. 1984 Dec; 40(6):1295-303. View on Pubmed