Christopher M. Callahan
Impact in
- Geriatrics and Gerontology top 0.05%
- Frailty in Older Adults
- Psychiatry and Mental health top 0.1%
- Dementia and Cognitive Impairment Research
Papers in
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- Geriatric Care and Nursing Homes 42
-
- Dementia and Cognitive Impairment Research 55
- Co-authors
- Hugh C. Hendrie (47 shared papers)Anthony J. Perkins (29 shared papers)Siu L. Hui (13 shared papers)William M. Tierney (15 shared papers)Timothy E. Stump (36 shared papers)Frederick W. Unverzagt (17 shared papers)Kurt Kroenke (8 shared papers)Malaz Boustani (34 shared papers)
- Journals
- Journal of the American Geriatrics Society (39 papers)Journal of General Internal Medicine (14 papers)Annals of Internal Medicine (12 papers)Medical Care (8 papers)Alzheimer Disease & Associated Disorders (7 papers)
- Partner nations
- United StatesVietnamUnited Kingdom
In The Last Decade
Christopher M. Callahan
178 papers receiving 14.0k citations
Christopher M. Callahan's Hit Papers
Peers
Comparison fields: 5 of 171
- Geriatrics and Gerontology 1.9k
- Psychiatry and Mental health 4.6k
- Neuropsychology and Physiological Psychology 402
- General Health Professions 5.1k
- Health 1.5k
Countries citing papers authored by Christopher M. Callahan
This map shows the geographic impact of Christopher M. Callahan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Christopher M. Callahan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Christopher M. Callahan more than expected).
Fields of papers citing papers by Christopher M. Callahan
This network shows the impact of papers produced by Christopher M. Callahan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Christopher M. Callahan. The network helps show where Christopher M. Callahan may publish in the future.
Co-authors
The 25 scholars most cited alongside Christopher M. Callahan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 186 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Collaborative Care Management of Late-Life Depression in the Primary Care Setting Hit paper breakdown → | 2002 | 1810 |
| 2 | Six-Item Screener to Identify Cognitive Impairment Among Potential Subjects for Clinical Research Hit paper breakdown → | 2002 | 1231 |
| 3 | Monitoring Depression Treatment Outcomes With the Patient Health Questionnaire-9 Hit paper breakdown → | 2004 | 1037 |
| 4 | Effectiveness of collaborative care for older adults with Alzheimer disease in primary care: a randomized controlled trial. Hit paper breakdown → | 2006 | 590 |
| 5 | 1995 | 441 | |
| 6 | Patient Outcomes Following Tricompartmental Total Knee Replacement Hit paper breakdown → | 1994 | 409 |
| 7 | 2007 | 384 | |
| 8 | 2004 | 301 | |
| 9 | 1994 | 261 | |
| 10 | 1994 | 258 | |
| 11 | 2005 | 250 | |
| 12 | 2001 | 237 | |
| 13 | 2005 | 226 | |
| 14 | 2012 | 185 | |
| 15 | 2003 | 184 | |
| 16 | 1999 | 180 | |
| 17 | 1994 | 175 | |
| 18 | 2000 | 173 | |
| 19 | 1991 | 161 | |
| 20 | 2005 | 160 |
About Christopher M. Callahan
Christopher M. Callahan is a scholar working on General Health Professions, Psychiatry and Mental health, Geriatrics and Gerontology, Public Health, Environmental and Occupational Health and Health, having authored 186 papers that have together received 14.6k indexed citations. Recurring topics across this work include Dementia and Cognitive Impairment Research (55 papers), Geriatric Care and Nursing Homes (42 papers), Health disparities and outcomes (28 papers), Frailty in Older Adults (25 papers), Palliative Care and End-of-Life Issues (21 papers), Health Systems, Economic Evaluations, Quality of Life (20 papers), Chronic Disease Management Strategies (19 papers) and Mental Health Treatment and Access (18 papers). The work is most often cited by research in Geriatrics and Gerontology (1.9k citations), Psychiatry and Mental health (4.6k citations), Neuropsychology and Physiological Psychology (402 citations), General Health Professions (5.1k citations) and Health (1.5k citations). Christopher M. Callahan has collaborated with scholars based in United States, Vietnam and United Kingdom. Frequent co-authors include Hugh C. Hendrie, Anthony J. Perkins, Siu L. Hui, William M. Tierney, Timothy E. Stump, Frederick W. Unverzagt, Kurt Kroenke, Malaz Boustani, Steven R. Counsell and Wayne Katon. Their work appears in journals such as Journal of the American Geriatrics Society, Journal of General Internal Medicine, Annals of Internal Medicine, Medical Care and Alzheimer Disease & Associated Disorders.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.