James Walkup

4.8k total citations · 1 hit paper
80 papers, 3.1k citations indexed

About

James Walkup is a scholar working on Psychiatry and Mental health, Infectious Diseases and General Health Professions. According to data from OpenAlex, James Walkup has authored 80 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Psychiatry and Mental health, 26 papers in Infectious Diseases and 24 papers in General Health Professions. Recurrent topics in James Walkup's work include HIV/AIDS Research and Interventions (26 papers), Mental Health Treatment and Access (22 papers) and Schizophrenia research and treatment (20 papers). James Walkup is often cited by papers focused on HIV/AIDS Research and Interventions (26 papers), Mental Health Treatment and Access (22 papers) and Schizophrenia research and treatment (20 papers). James Walkup collaborates with scholars based in United States, Netherlands and Canada. James Walkup's co-authors include Stephen Crystal, Mark Olfson, Usha Sambamoorthi, Ayşe Akıncıgil, Carol A. Boyer, Stephen Hansell, David Mechanic, Peter J. Weiden, Lisa Townsend and Scott Bilder and has published in prestigious journals such as American Journal of Psychiatry, American Psychologist and American Journal of Public Health.

In The Last Decade

James Walkup

77 papers receiving 2.9k citations

Hit Papers

How institutions think 1990 2026 2002 2014 1990 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. How institutions think
    1990 533 citations James Walkup profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
James Walkup United States 28 911 750 698 655 509 80 3.1k
Pamela M. Diamond United States 30 553 0.6× 549 0.7× 1.1k 1.5× 410 0.6× 385 0.8× 99 2.9k
Colm O’Muircheartaigh United Kingdom 21 1.0k 1.1× 433 0.6× 526 0.8× 478 0.7× 164 0.3× 51 2.8k
William H. Fisher United States 31 807 0.9× 1.0k 1.4× 1.8k 2.6× 774 1.2× 387 0.8× 155 3.5k
Eric R. Wright United States 29 304 0.3× 1.1k 1.5× 990 1.4× 1.2k 1.9× 351 0.7× 110 3.2k
Chunling Lu United States 26 547 0.6× 1.2k 1.7× 841 1.2× 166 0.3× 342 0.7× 105 5.1k
Katherine E. Watkins United States 29 342 0.4× 1.7k 2.3× 558 0.8× 675 1.0× 1.2k 2.3× 160 3.7k
Andrew S. London United States 29 241 0.3× 1.4k 1.8× 504 0.7× 277 0.4× 1.0k 2.0× 105 3.9k
Donna McAlpine United States 37 644 0.7× 1.9k 2.6× 1.3k 1.8× 1.1k 1.7× 445 0.9× 74 4.5k
Rolf Wynn Norway 35 390 0.4× 1.4k 1.9× 1.2k 1.7× 294 0.4× 284 0.6× 178 4.3k
Damien Ridge United Kingdom 27 178 0.2× 780 1.0× 809 1.2× 578 0.9× 262 0.5× 130 2.8k

Countries citing papers authored by James Walkup

Since Specialization
Citations

This map shows the geographic impact of James Walkup'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 James Walkup with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James Walkup more than expected).

Fields of papers citing papers by James Walkup

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James Walkup. 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 James Walkup. The network helps show where James Walkup may publish in the future.

Co-authorship network of co-authors of James Walkup

This figure shows the co-authorship network connecting the top 25 collaborators of James Walkup. A scholar is included among the top collaborators of James Walkup based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with James Walkup. James Walkup is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Alwhaibi, Monira, Usha Sambamoorthi, Suresh Madhavan, et al.. (2016). Cancer Type and Risk of Newly Diagnosed Depression Among Elderly Medicare Beneficiaries With Incident Breast, Colorectal, and Prostate Cancers. Journal of the National Comprehensive Cancer Network. 15(1). 46–55. 11 indexed citations
2.
Blank, Michael B., Seth Himelhoch, James Walkup, & Marlene Eisenberg. (2013). Treatment Considerations for HIV-Infected Individuals with Severe Mental Illness. Current HIV/AIDS Reports. 10(4). 371–379. 39 indexed citations
3.
Akıncıgil, Ayşe, Ira B. Wilson, James Walkup, et al.. (2011). Antidepressant Treatment and Adherence to Antiretroviral Medications Among Privately Insured Persons with HIV/AIDS. AIDS and Behavior. 15(8). 1819–1828. 18 indexed citations
4.
Hoover, Donald R., Ayşe Akıncıgil, Jonathan D. Prince, et al.. (2008). Medicare Inpatient Treatment for Elderly Non-dementia Psychiatric Illnesses 1992–2002; Length of Stay and Expenditures by Facility Type. Administration and Policy in Mental Health and Mental Health Services Research. 35(4). 231–240. 7 indexed citations
5.
Akıncıgil, Ayşe, John R. Bowblis, Carrie A. Levin, et al.. (2007). Adherence to Antidepressant Treatment Among Privately Insured Patients Diagnosed With Depression. Medical Care. 45(4). 363–369. 127 indexed citations
6.
Crystal, Stephen, Ayşe Akıncıgil, Scott Bilder, & James Walkup. (2007). Studying Prescription Drug Use and Outcomes With Medicaid Claims Data. Medical Care. 45(10). S58–S65. 125 indexed citations
7.
Wei, Wenhui, Usha Sambamoorthi, Mark Olfson, James Walkup, & Stephen Crystal. (2005). Use of Psychotherapy for Depression in Older Adults. American Journal of Psychiatry. 162(4). 711–717. 86 indexed citations
8.
Bagchi, Ann D., et al.. (2004). Use of antipsychotic medications among HIV-infected individuals with schizophrenia. Schizophrenia Research. 71(2-3). 435–444. 16 indexed citations
9.
Walkup, James, et al.. (2004). Sensitivity of an AIDS Case-Finding Algorithm. Medical Care. 42(8). 756–763. 36 indexed citations
10.
Harman, Jeffrey S., Stephen Crystal, James Walkup, & Mark Olfson. (2003). Trends in elderly patients' office visits for the treatment of depression according to physician specialty: 1985–1999. The Journal of Behavioral Health Services & Research. 30(3). 332–341. 37 indexed citations
11.
Crystal, Stephen, Usha Sambamoorthi, James Walkup, & Ayşe Akıncıgil. (2003). Diagnosis and Treatment of Depression in the Elderly Medicare Population: Predictors, Disparities, and Trends. Journal of the American Geriatrics Society. 51(12). 1718–1728. 183 indexed citations
12.
Walkup, James, Usha Sambamoorthi, & Stephen Crystal. (2001). Incidence and Consistency of Antiretroviral Use Among HIV-Infected Medicaid Beneficiaries With Schizophrenia. The Journal of Clinical Psychiatry. 62(3). 174–178. 20 indexed citations
13.
Walkup, James, et al.. (2001). Is the substance abuse of inpatients with schizophrenia overlooked?. General Hospital Psychiatry. 23(1). 26–30. 5 indexed citations
14.
Olfson, Mark, David Mechanic, Stephen Hansell, et al.. (2000). Predicting Medication Noncompliance After Hospital Discharge Among Patients With Schizophrenia. Psychiatric Services. 51(2). 216–222. 350 indexed citations
15.
Walkup, James, et al.. (2000). Reliability of Medicaid Claims Files for Use in Psychiatric Diagnoses and Service Delivery. Administration and Policy in Mental Health and Mental Health Services Research. 27(3). 129–139. 66 indexed citations
16.
Walkup, James, Donna McAlpine, Mark Olfson, et al.. (2000). Patients With Schizophrenia at Risk for Excessive Antipsychotic Dosing. The Journal of Clinical Psychiatry. 61(5). 344–348. 78 indexed citations
17.
Walkup, James, Usha Sambamoorthi, & Stephen Crystal. (1999). Characteristics of Persons With Mental Retardation and HIV/AIDS Infection in a Statewide Medicaid Population. American Journal on Mental Retardation. 104(4). 356–356. 16 indexed citations
18.
Walkup, James, et al.. (1998). Practices Related to HIV Risk Assessment in General Hospital Psychiatric Units in New York State. Psychiatric Services. 49(4). 529–530. 18 indexed citations
19.
Walkup, James. (1994). Commentary on Harper, ‘The professional construction of paranoia and the discursive use of diagnostic criteria’. British Journal of Medical Psychology. 67(2). 147–150. 4 indexed citations
20.
Walkup, James. (1990). On the measurement of delusions. British Journal of Medical Psychology. 63(4). 365–368. 4 indexed citations

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.

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