Ryan J. McCammon

3.6k total citations · 1 hit paper
41 papers, 2.2k citations indexed

About

Ryan J. McCammon is a scholar working on Health, General Health Professions and Psychiatry and Mental health. According to data from OpenAlex, Ryan J. McCammon has authored 41 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Health, 14 papers in General Health Professions and 11 papers in Psychiatry and Mental health. Recurrent topics in Ryan J. McCammon's work include Health disparities and outcomes (13 papers), Dementia and Cognitive Impairment Research (9 papers) and Frailty in Older Adults (4 papers). Ryan J. McCammon is often cited by papers focused on Health disparities and outcomes (13 papers), Dementia and Cognitive Impairment Research (9 papers) and Frailty in Older Adults (4 papers). Ryan J. McCammon collaborates with scholars based in United States, Poland and Australia. Ryan J. McCammon's co-authors include Kenneth M. Langa, Duane F. Alwin, Mark A. Ilgen, Kara Zivin, David R. Weir, Marcia Valenstein, Rebecca Yu, Nicole B. Ellison, Deborah A. Levine and Jennifer J. Manly and has published in prestigious journals such as Hepatology, Neurology and American Sociological Review.

In The Last Decade

Ryan J. McCammon

41 papers receiving 2.1k citations

Hit Papers

align trajectories

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.

Estimating the Prevalence of Dementia and Mild Cognitive Impairment in the US

2022 242 citations Jennifer J. Manly, Richard N. Jones et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryan J. McCammon United States	25	666	410	400	394	315	41	2.2k
Louise Lafortune United Kingdom	29	638 1.0×	421 1.0×	831 2.1×	511 1.3×	269 0.9×	157	3.2k
Karen Rose United States	25	569 0.9×	246 0.6×	739 1.8×	495 1.3×	506 1.6×	120	2.5k
Christian Brettschneider Germany	31	907 1.4×	540 1.3×	836 2.1×	445 1.1×	267 0.8×	142	3.0k
Sérgio Baxter Andreoli Brazil	33	586 0.9×	323 0.8×	685 1.7×	1.3k 3.3×	234 0.7×	113	3.0k
Bellinda L. King‐Kallimanis United States	25	305 0.5×	404 1.0×	322 0.8×	274 0.7×	180 0.6×	87	2.1k
Alexander Pabst Germany	28	382 0.6×	408 1.0×	660 1.6×	557 1.4×	196 0.6×	133	2.2k
Amanda Sonnega United States	17	351 0.5×	826 2.0×	835 2.1×	445 1.1×	361 1.1×	53	2.7k
Wassim Tarraf United States	28	579 0.9×	535 1.3×	554 1.4×	633 1.6×	342 1.1×	177	2.9k
Kathleen A. Smyth United States	30	1.4k 2.1×	389 0.9×	718 1.8×	478 1.2×	520 1.7×	82	3.2k
Raymond F. Palmer United States	34	1.2k 1.7×	348 0.8×	827 2.1×	402 1.0×	221 0.7×	136	3.8k

Countries citing papers authored by Ryan J. McCammon

Since Specialization

Citations

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

Fields of papers citing papers by Ryan J. McCammon

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan J. McCammon. 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 Ryan J. McCammon. The network helps show where Ryan J. McCammon may publish in the future.

Co-authorship network of co-authors of Ryan J. McCammon

This figure shows the co-authorship network connecting the top 25 collaborators of Ryan J. McCammon. A scholar is included among the top collaborators of Ryan J. McCammon 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 Ryan J. McCammon. Ryan J. McCammon is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Jones, Richard N., Jennifer J. Manly, Kenneth M. Langa, et al.. (2023). Factor structure of the Harmonized Cognitive Assessment Protocol neuropsychological battery in the Health and Retirement Study. Journal of the International Neuropsychological Society. 30(1). 47–55. 18 indexed citations

Domingue, Benjamin W., Ryan J. McCammon, Brady T. West, et al.. (2023). The Mode Effect of Web-Based Surveying on the 2018 U.S. Health and Retirement Study Measure of Cognitive Functioning. The Journals of Gerontology Series B. 78(9). 1466–1473. 5 indexed citations

Rostant, Ola S., et al.. (2022). A life course view on depression: Social determinants of depressive symptom trajectories over 25 Years of Americans’ Changing Lives. SSM - Population Health. 18. 101125–101125. 12 indexed citations

Langa, Kenneth M., Lindsay H. Ryan, Ryan J. McCammon, et al.. (2019). The Health and Retirement Study Harmonized Cognitive Assessment Protocol Project: Study Design and Methods. Neuroepidemiology. 54(1). 64–74. 118 indexed citations

Maust, Donovan T., Helen C. Kales, Ryan J. McCammon, et al.. (2017). Distress Associated with Dementia-Related Psychosis and Agitation in Relation to Healthcare Utilization and Costs. American Journal of Geriatric Psychiatry. 25(10). 1074–1082. 48 indexed citations

Leggett, Amanda, Philippa Clarke, Kara Zivin, et al.. (2016). Recent Improvements in Cognitive Functioning Among Older U.S. Adults: How Much Does Increasing Educational Attainment Explain?. The Journals of Gerontology Series B. 74(3). 536–545. 23 indexed citations

Callaghan, Brian C., Kevin A. Kerber, Kenneth M. Langa, et al.. (2015). Longitudinal patient-oriented outcomes in neuropathy. Neurology. 85(1). 71–79. 36 indexed citations

Saczynski, Jane S., Allison B. Rosen, Ryan J. McCammon, et al.. (2015). Antidepressant Use and Cognitive Decline: The Health and Retirement Study. The American Journal of Medicine. 128(7). 739–746. 33 indexed citations

Zivin, Kara, Paul A. Pirraglia, Ryan J. McCammon, Kenneth M. Langa, & Sandeep Vijan. (2013). Trends in Depressive Symptom Burden Among Older Adults in the United States from 1998 to 2008. Journal of General Internal Medicine. 28(12). 1611–1619. 36 indexed citations

10.

Rakoski, Mina O., Ryan J. McCammon, John D. Piette, et al.. (2011). Burden of Cirrhosis on Older Americans and Their Families. Hepatology. 55(1). 184–191. 135 indexed citations

11.

Plassman, Brenda L., Kenneth M. Langa, Ryan J. McCammon, et al.. (2011). Incidence of dementia and cognitive impairment, not dementia in the united states. Annals of Neurology. 70(3). 418–426. 202 indexed citations

12.

Ilgen, Mark A., Brian E. Perron, Ewa K. Czyz, Ryan J. McCammon, & Jodie Trafton. (2010). The Timing of Onset of Pain and Substance Use Disorders. American Journal on Addictions. 19(5). 409–415. 28 indexed citations

13.

Brower, Kirk J., et al.. (2010). Prescription Sleeping Pills, Insomnia, and Suicidality in the National Comorbidity Survey Replication. The Journal of Clinical Psychiatry. 72(4). 515–521. 66 indexed citations

14.

Blow, F. C., Maureen A. Walton, Ewa K. Czyz, et al.. (2009). Severity of Baseline Alcohol Use as a Moderator of Brief Interventions in the Emergency Department. Alcohol and Alcoholism. 44(5). 486–490. 29 indexed citations

15.

Zivin, Kara, Ryan J. McCammon, Matthew M. Davis, Lakshmi Halasyamani, & Helen C. Kales. (2008). Increases in Medicare Prescription Drug Plan Costs Attributable to Psychotropic Medications. American Journal of Geriatric Psychiatry. 16(8). 674–685. 3 indexed citations

16.

Wojnar, Marcin, et al.. (2008). Sleep problems and suicidality in the National Comorbidity Survey Replication. Journal of Psychiatric Research. 43(5). 526–531. 139 indexed citations

17.

Zivin, Kara, John F. McCarthy, Ryan J. McCammon, et al.. (2008). Health-Related Quality of Life and Utilities Among Patients With Depression in the Department of Veterans Affairs. Psychiatric Services. 59(11). 1331–1334. 10 indexed citations

18.

Ilgen, Mark A., Kara Zivin, Ryan J. McCammon, & Marcia Valenstein. (2008). Mental Illness, Previous Suicidality, and Access to Guns in the United States. Psychiatric Services. 59(2). 198–200. 72 indexed citations

19.

Wray, Linda A., et al.. (2006). Social Status, Risky Health Behaviors, and Diabetes in Middle-Aged and Older Adults. The Journals of Gerontology Series B. 61(6). S290–S298. 27 indexed citations

20.

Alwin, Duane F. & Ryan J. McCammon. (2001). Aging, Cohorts, and Verbal Ability. The Journals of Gerontology Series B. 56(3). S151–S161. 65 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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