World's Best Scientists 2026 revealed!
Christopher M. Callahan

Christopher M. Callahan

D-Index & Metrics

Medicine

D-Index
77
Citations
26075
World Ranking
18318
National Ranking
9142

Overview

Christopher M. Callahan is affiliated with Indiana University in the United States. Their research spans multiple fields within medicine and health professions, with a notable focus on dementia and cognitive impairment, geriatric care, and palliative care.

The scientist's primary fields of study include Medicine, with 37 publications, and Health Professions, with 19 publications. Subfields prominently represented in their work cover General Health Professions, Public Health, Environmental and Occupational Health, Psychiatry and Mental Health, Cardiology and Cardiovascular Medicine, and Economics and Econometrics.

Main topics of their research include:

  • Dementia and Cognitive Impairment Research
  • Palliative Care and End-of-Life Issues
  • Geriatric Care and Nursing Homes
  • Health Systems, Economic Evaluations, Quality of Life
  • Chronic Disease Management Strategies
  • Pharmaceutical Practices and Patient Outcomes
  • Blood Pressure and Hypertension Studies

Recent papers authored or co-authored by Christopher M. Callahan demonstrate a focus on dementia care, behavioral interventions for older adults, and cardiovascular biomarkers related to depression. Notable publications include:

  • Dementia care navigation: Building toward a common definition, key principles, and outcomes (2023), Alzheimer's & Dementia Translational Research & Clinical Interventions
  • Multicomponent behavioral intervention to reduce exposure to anticholinergics in primary care older adults (2021), Journal of the American Geriatrics Society
  • Novel Markers of Angiogenesis in the Setting of Cognitive Impairment and Dementia (2020), Journal of Alzheimer's Disease
  • Complex Transitions from Skilled Nursing Facility to Home: Patient and Caregiver Perspectives (2020), Journal of General Internal Medicine
  • Effect of modernized collaborative care for depression on depressive symptoms and cardiovascular disease risk biomarkers: eIMPACT randomized controlled trial (2023), Brain Behavior and Immunity

Their frequent collaborators include Daniel O. Clark, Malaz Boustani, Alexia M. Torke, Jesse C. Stewart, and John I. Nürnberger. Publication venues where Christopher M. Callahan's work appears most often include:

  • Journal of the American Geriatrics Society (6 publications)
  • Journal of General Internal Medicine (2 publications)
  • JAMA Internal Medicine (2 publications)
  • SSRN Electronic Journal (2 publications)
  • Innovation in Aging (2 publications)

In addition to journal articles, Christopher M. Callahan has contributed to book publications, such as the volume published by University of Lodz Press titled Łódzkie festiwale teatralne. Historia i współczesność (2021).

Best Publications

  • Collaborative Care Management of Late-Life Depression in the Primary Care Setting: A Randomized Controlled Trial

    Jürgen Unützer;Wayne Katon;Christopher M. Callahan;John W. Williams

  • Six-item screener to identify cognitive impairment among potential subjects for clinical research.

    Christopher M. Callahan;Frederick W. Unverzagt;Siu L. Hui;Anthony J. Perkins

  • Monitoring depression treatment outcomes with the Patient Health Questionnaire-9

    Bernd Löwe;Jürgen Unützer;Christopher M Callahan;Anthony J Perkins

  • Effectiveness of collaborative care for older adults with Alzheimer disease in primary care: a randomized controlled trial.

    Christopher M. Callahan;Malaz A. Boustani;Frederick W. Unverzagt;Mary G. Austrom

  • Geriatric care management for low-income seniors: a randomized controlled trial.

    Steven R. Counsell;Christopher M. Callahan;Daniel O. Clark;Wanzhu Tu

  • Patient Outcomes Following Tricompartmental Total Knee Replacement: A Meta-analysis

    Christopher M. Callahan;Brenda G. Drake;David A. Heck;Robert S. Dittus;Robert S. Dittus

  • Depression and Bipolar Support Alliance consensus statement on the unmet needs in diagnosis and treatment of mood disorders in late life.

    Dennis S. Charney;Charles F. Reynolds;Lydia Lewis;Barry D. Lebowitz

  • Common comorbidity scales were similar in their ability to predict health care costs and mortality.

    Anthony J. Perkins;Kurt Kroenke;Jürgen Unützer;Wayne Katon

  • Longitudinal Study of Depression and Health Services Use Among Elderly Primary Care Patients

    Christopher M. Callahan;Christopher M. Callahan;Siu L. Hui;Siu L. Hui;Nancy A. Nienaber;Beverly S. Musick;Beverly S. Musick

  • Improving treatment of late life depression in primary care: a randomized clinical trial.

    Christopher M. Callahan;Hugh C. Hendrie;Robert S. Dittus;D. Craig Brater

  • Implementing a screening and diagnosis program for dementia in primary care.

    Malaz Boustani;Christopher M. Callahan;Christopher M. Callahan;Frederick W. Unverzagt;Mary G. Austrom

  • Comorbidity profile of dementia patients in primary care: are they sicker?

    Cathy C. Schubert;Malaz Boustani;Christopher M. Callahan;Anthony J. Perkins

  • The Risk of Nursing Home Placement and Subsequent Death Among Older Adults

    Fredric D. Wolinsky;Christopher M. Callahan;Christopher M. Callahan;John F. Fitzgerald;John F. Fitzgerald;John F. Fitzgerald;Robert J. Johnson

  • Improving primary care for depression in late life: the design of a multicenter randomized trial.

    Jürgen Unützer;Wayne Katon;John W. Williams;Christopher M. Callahan

  • Association of Antioxidants with Memory in a Multiethnic Elderly Sample Using the Third National Health and Nutrition Examination Survey

    Anthony J. Perkins;Hugh C. Hendrie;Christopher M. Callahan;Christopher M. Callahan;Sujuan Gao

  • Changes in functional status and the risks of subsequent nursing home placement and death.

    F. D. Wolinsky;Christopher Callahan;J. F. Fitzgerald;R. J. Johnson

  • Cost-effectiveness of improving primary care treatment of late-life depression.

    Wayne J. Katon;Michael Schoenbaum;Ming Yu Fan;Christopher M. Callahan

  • Outcomes of percutaneous endoscopic gastrostomy among older adults in a community setting

    Christopher M. Callahan;Kathy M. Haag;Morris Weinberger;Morris Weinberger;Morris Weinberger;William M. Tierney;William M. Tierney;William M. Tierney

  • Oral corticosteroid therapy for patients with stable chronic obstructive pulmonary disease. A meta-analysis.

    Christopher M. Callahan;Robert S. Dittus;Barry P. Katz

  • Accuracy of self-reported health services use and patterns of care among urban older adults.

    Daniel B. Wallihan;Timothy E. Stump;Timothy E. Stump;Christopher M. Callahan

Frequent Co-Authors

Hugh C. Hendrie
Hugh C. Hendrie Indiana University
Malaz Boustani
Malaz Boustani Indiana University
William M. Tierney
William M. Tierney The University of Texas at Austin
Frederick W. Unverzagt
Frederick W. Unverzagt Indiana University
Fredric D. Wolinsky
Fredric D. Wolinsky University of Iowa
Kurt Kroenke
Kurt Kroenke Indiana University
John W Williams
John W Williams Duke University
Robert S. Dittus
Robert S. Dittus Vanderbilt University Medical Center
Clement J. McDonald
Clement J. McDonald National Institutes of Health
Wayne Katon
Wayne Katon University of Washington

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

If you're interested in a flexible approach to healthcare education, online degree options are becoming increasingly popular. For aspiring nurse leaders and educators, phd nursing programs online provide advanced study and research opportunities with the convenience of online learning.

Current registered nurses seeking career advancement can consider the cheapest rn to bsn program options. These programs are cost-effective and help nurses gain valuable credentials that are often required for higher-level roles.

For those wishing to shift into nursing from a non-nursing background, direct msn programs online offer an accelerated path toward becoming a nurse and obtaining a master's degree simultaneously.

Additionally, prospective students looking for accessible pathways into nursing can explore online adn programs. These programs can provide a quicker entry into the workforce and are often less competitive for admissions.

Best Scientists Citing Christopher M. Callahan

Trending Scientists

Recently Published Articles