Christopher Callahan
Impact in
- Geriatrics and Gerontology top 2%
- Pharmaceutical Practices and Patient Outcomes
- Frailty in Older Adults
Papers in
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- Dementia and Cognitive Impairment Research 3
- Schizophrenia research and treatment 1
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- Pharmaceutical Practices and Patient Outcomes 1
- Frailty in Older Adults 1
- Co-authors
- Fredric D. Wolinsky (1 shared paper)J F Fitzgerald (1 shared paper)Rebecca J. Johnson (1 shared paper)Malaz Boustani (3 shared papers)Babar Khan (1 shared paper)Xueya Cai (1 shared paper)Noll L. Campbell (1 shared paper)Greg A. Sachs (1 shared paper)
- Journals
- Alzheimer s & Dementia (2 papers)Current Alzheimer Research (1 paper)Pulmonary Circulation (1 paper)Zeitschrift für Gerontologie und Geriatrie (1 paper)PubMed (1 paper)
- Partner nations
- United StatesVietnamGermany
In The Last Decade
Christopher Callahan
6 papers receiving 348 citations
Peers
Comparison fields: 5 of 79
- Geriatrics and Gerontology 126
- Neuropsychology and Physiological Psychology 15
- Critical Care and Intensive Care Medicine 43
- Health 69
- Psychiatry and Mental health 106
Countries citing papers authored by Christopher Callahan
This map shows the geographic impact of Christopher 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 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 Callahan more than expected).
Fields of papers citing papers by Christopher Callahan
This network shows the impact of papers produced by Christopher 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 Callahan. The network helps show where Christopher Callahan may publish in the future.
Co-authors
The 18 scholars most cited alongside Christopher 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
| # | Work | ||
|---|---|---|---|
| 1 | Changes in functional status and the risks of subsequent nursing home placement and death. | 1993 | 178 |
| 2 | 2012 | 143 | |
| 3 | 2009 | 30 | |
| 4 | 2022 | 8 | |
| 5 | 2015 | 2 | |
| 6 | 2016 | 1 |
About Christopher Callahan
Christopher Callahan is a scholar working on Psychiatry and Mental health, Geriatrics and Gerontology, Surgery, Critical Care and Intensive Care Medicine and Health, having authored 6 papers that have together received 362 indexed citations. Recurring topics across this work include Dementia and Cognitive Impairment Research (3 papers), Cardiovascular, Neuropeptides, and Oxidative Stress Research (1 paper), Pharmaceutical Practices and Patient Outcomes (1 paper), Mental Health and Psychiatry (1 paper), Schizophrenia research and treatment (1 paper), Frailty in Older Adults (1 paper), Mental Health Treatment and Access (1 paper) and Chronic Disease Management Strategies (1 paper). The work is most often cited by research in Geriatrics and Gerontology (126 citations), Neuropsychology and Physiological Psychology (15 citations), Critical Care and Intensive Care Medicine (43 citations), Health (69 citations) and Psychiatry and Mental health (106 citations). Christopher Callahan has collaborated with scholars based in United States, Vietnam and Germany. Frequent co-authors include Fredric D. Wolinsky, J F Fitzgerald, Rebecca J. Johnson, Malaz Boustani, Babar Khan, Xueya Cai, Noll L. Campbell, Greg A. Sachs, Hugh C. Hendrie and Jiwang Chen. Their work appears in journals such as Alzheimer s & Dementia, Current Alzheimer Research, Pulmonary Circulation, Zeitschrift für Gerontologie und Geriatrie and PubMed.
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.