🏆 Finalist — NIH Data Sharing Index (“S-Index”) Challenge

Karen C. Johnston

Urology of Virginia

ORCID: 0000-0003-3468-3121

Also affiliated with University of Virginia

Medicine

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 5%percentile
0.346Author DataRank

Indexed papers

1in pilot corpus
datarank_citation_only_1hop_v6· scope data_onlyMethodology
Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 1 indexed paper attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

Top data-sharing exemplar

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

Leveraging multi-site electronic health data for characterization of subtypes: a pilot study of dementia in the N3C Clinical Tenant

JAMIA Open(2024)10.1093/jamiaopen/ooae076
Top 51%
0.346DataRank
Top 51%5 citations

Jiebei Liu, Amy Abramowitz, Carol Geary, Karen C. Johnston, Carol A. Manning +7 more

Papers

Driven by 15 papers — median percentile 49. Top paper: “Glucose Control and Risk of Symptomatic Intracerebral Hemorrhage Following Thrombolysis for Acute Ischemic Stroke”.

Glucose Control and Risk of Symptomatic Intracerebral Hemorrhage Following Thrombolysis for Acute Ischemic Stroke

Neurology(2024)10.1212/wnl.0000000000209323
N/A
0.833DataRank · unranked
18 citations

Stephan A. Mayer, Nicole Chiota-McCollum, Ashley C. Bolte, Qi Pauls, L. Creed Pettigrew +4 more

National Institutes of Health StrokeNet During the Time of COVID-19 and Beyond

Stroke(2020)10.1161/strokeaha.120.030417
N/A
0.464DataRank · unranked
21 citations

Jordan Elm, L. Scott Janis, Wenle Zhao, Claudia S. Moy, Catherine Dillon +34 more

Leveraging multi-site electronic health data for characterization of subtypes: a pilot study of dementia in the N3C Clinical Tenant

JAMIA Open(2024)10.1093/jamiaopen/ooae076
Top 51%
0.346DataRank
Top 51%5 citations

Jiebei Liu, Amy Abramowitz, Carol Geary, Karen C. Johnston, Carol A. Manning +7 more

Building our research administrator workforce as our clinical and translational research programs become increasingly complex

Frontiers in Pharmacology(2023)10.3389/fphar.2023.1295255
N/A
0.165DataRank · unranked
2 citations

Jennifer Phillips, Burks Sandra, Karen C. Johnston, Calvo Kayla

Blood Pressure and Low‐Density Lipoprotein Cholesterol in Stroke Survivors Versus Controls in the United States From 1999 to 2018

Stroke Vascular and Interventional Neurology(2022)10.1161/svin.121.000286
N/A
0DataRank · unranked
2 citations

Shyam Prabhakaran, Eric Stulberg, Kaitlin McLean, Karen C. Johnston, Maarten G. Lansberg +7 more

Corrigendum to ‘self-reported race as a social determinant of stroke risk in observational versus clinical trial datasets’

Journal of Stroke and Cerebrovascular Diseases(2022)10.1016/j.jstrokecerebrovasdis.2022.106911
N/A
0DataRank · unranked
0 citations

Kevin N. Sheth, Olajide Williams, Karen C. Johnston, Shyam Prabhakaran, Adamde Havenon +1 more

The Lives Lost to Inequities

Neurology(2023)10.1212/wnl.0000000000207561
N/A
0DataRank · unranked
11 citations

Derek A. Chapman, Jong Hyung Lee, Karen C. Johnston, Richard T. Benson, Edwin Trevathan +3 more

Increased stroke severity and mortality in patients with SARS-CoV-2 infection: An analysis from the N3C database

Journal of Stroke and Cerebrovascular Diseases(2023)10.1016/j.jstrokecerebrovasdis.2023.106987
N/A
0DataRank · unranked
6 citations

Indika Mallawaarachchi, Chad Aldridge, Ethan D Assefa, Arti Patel, Johanna J. Loomba +8 more

Seven Strategies to Integrate Equity within Translational Research in Neurology

Annals of Neurology(2024)10.1002/ana.26873
N/A
0DataRank · unranked
14 citations

Tirisham Gyang, Richard T. Benson, Gretchen L. Birbeck, Karen C. Johnston, Walter Royal +6 more

Trends in American Indian/Alaskan native self-reported stroke prevalence and associated modifiable risk factors in the United States from 2011-2021

Journal of Stroke and Cerebrovascular Diseases(2024)10.1016/j.jstrokecerebrovasdis.2024.107650
N/A
0DataRank · unranked
4 citations

Neha Shrishail, Ka‐Ho Wong, Karen C. Johnston, Richa Sharma, John P. Ney +3 more

Inspiring diverse researchers in Virginia: Cultivating research excellence through a career-building program

Journal of Clinical and Translational Science(2024)10.1017/cts.2024.12
N/A
0DataRank · unranked
0 citations

Jennifer Phillips, Sandra G. Burks, A. Greene, Sana Syed, Karen C. Johnston +1 more

Protect the integrity of the US National Institutes of Health

Nature(2025)10.1038/d41586-025-02331-1
N/A
0DataRank · unranked
0 citations

Karen C. Johnston, Barbara Kelley, Kevin C. Kent Lloyd

Translational Stroke Research: Vision and Opportunities

eScholarship (California Digital Library)(2020)10.17615/cbef-ym14
N/A
0DataRank · unranked
13 citations

Dale Corbett, John H. Zhang, Claudia S. Moy, Lee H. Schwamm, Sunghee Cho +37 more

Comparison of Bayesian vs Frequentist Adaptive Trial Design in the Stroke Hyperglycemia Insulin Network Effort Trial

JAMA Network Open(2022)10.1001/jamanetworkopen.2022.11616
N/A
0DataRank · unranked
17 citations

William J. Meurer, Valerie Durkalski, Qi Pauls, Jason Connor, Donald A. Berry +4 more

Collateral status, hyperglycemia, and functional outcome after acute ischemic stroke

BMC Neurology(2022)10.1186/s12883-022-02943-4
N/A
0DataRank · unranked
6 citations

Robin Ulep, Kevin K. Kumar, Andrew M. Southerland, Mark R. Conaway, James E. Faber +18 more