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

Johanna Chapin-Bardales

National Center for HIV/AIDS Viral Hepatitis STD and TB Prevention

ORCID: 0000-0001-6145-8937
MedicineSocial SciencesImmunology and MicrobiologyHealth Professions

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 6%percentile
0.300Author 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.

Examining Geographical Differences in the HIV Care Continuum Among Men Who Have Sex with Men in Mexico

AIDS and Behavior(2022)10.1007/s10461-022-03809-z
Top 55%
0.300DataRank
Top 55%5 citations

Marisol Valenzuela-Lara, Johanna Chapin-Bardales, Ricardo Baruch-Domínguez, Travis Sanchez, Mauricio Hernández-Ávila +2 more

Papers

Driven by 10 papers — median percentile 45. Top paper: “Factors Associated with Exchange Sex Among Cisgender Persons Who Inject Drugs: Women and MSM—23 U.S. Cities, 2018”.

Factors Associated with Exchange Sex Among Cisgender Persons Who Inject Drugs: Women and MSM—23 U.S. Cities, 2018

AIDS and Behavior(2022)10.1007/s10461-022-03743-0
N/A
0.385DataRank · unranked
12 citations

Kate Buchacz, Dita Broz, Christine Agnew-Brune, Michelle L. Johnson Jones, Susan Cha +88 more

Are we ending the HIV epidemic among persons who inject drugs?: key findings from 19 US cities

AIDS(2025)10.1097/qad.0000000000004249
N/A
0.312DataRank · unranked
7 citations

Cyprian Wejnert, Dafna Kanny, Dita Broz, Jonathan Feelemyer, Rebecca B. Hershow +7 more

Examining Geographical Differences in the HIV Care Continuum Among Men Who Have Sex with Men in Mexico

AIDS and Behavior(2022)10.1007/s10461-022-03809-z
Top 55%
0.300DataRank
Top 55%5 citations

Marisol Valenzuela-Lara, Johanna Chapin-Bardales, Ricardo Baruch-Domínguez, Travis Sanchez, Mauricio Hernández-Ávila +2 more

Changes in HIV preexposure prophylaxis awareness and use among men who inject drugs who have sex with men by sexual identity in 19 US urban areas

AIDS(2024)10.1097/qad.0000000000004005
N/A
0.262DataRank · unranked
4 citations

Janet Burnett, Joseph Prejean, Johanna Chapin-Bardales, Susan Cha, Patrick C. Eustaquio

HIV Testing Pre- and Post-COVID-19 Pandemic Among Persons who Inject Drugs – National HIV Behavioral Surveillance, 19 Cities, 2018 and 2022

AIDS and Behavior(2025)10.1007/s10461-025-04672-4
N/A
0.165DataRank · unranked
2 citations

Dita Broz, Lyssa Faucher, Jonathan Feelemyer, Johanna Chapin-Bardales, for the National HIV Behavioral Surveillance Study Group +1 more

Hepatitis C virus infection and co-infection with HIV among persons who inject drugs in 10 U.S. cities—National HIV Behavioral Surveillance, 2018

International Journal of Drug Policy(2024)10.1016/j.drugpo.2024.104387
N/A
0DataRank · unranked
10 citations

Alice Asher, Dita Broz, Eyasu H. Teshale, Tonya Mixson‐Hayden, Amanda Poe +4 more

Syringe Services Programs’ Role in Ending the HIV Epidemic in the U.S.: Why We Cannot Do It Without Them

American Journal of Preventive Medicine(2021)10.1016/j.amepre.2021.05.044
N/A
0DataRank · unranked
108 citations

Neal Carnes, Johanna Chapin-Bardales, Don C. Des Jarlais, Senad Handanagić, Christopher M. Jones +3 more

HIV Pre-exposure Prophylaxis Persistence and Adherence Among Men Who Have Sex With Men in Four US Cities

JAIDS Journal of Acquired Immune Deficiency Syndromes(2023)10.1097/qai.0000000000003160
N/A
0DataRank · unranked
14 citations

Richard E. Haaland, Amy Martin, Angela Holder, Virginia A. Butts, Catlainn Sionéan +9 more

Pre-exposure Prophylaxis Use and Detected Sexually Transmitted Infections Among Men Who Have Sex With Men in the United States—National HIV Behavioral Surveillance, 5 US Cities, 2017

JAIDS Journal of Acquired Immune Deficiency Syndromes(2020)10.1097/qai.0000000000002482
N/A
0DataRank · unranked
18 citations

Michelle L. Johnson Jones, Robert D. Kirkcaldy, Kyle T. Bernstein, Gabriela Paz‐Bailey, Christi Phillips +9 more

Awareness, willingness to use pre-exposure prophylaxis, and use of post-exposure prophylaxis for HIV prevention among men who have sex with men in Mexico

International Journal of STD & AIDS(2024)10.1177/09564624241248254
N/A
0DataRank · unranked
3 citations

Angel B. Algarin, Ricardo Baruch-Domínguez, Laramie R. Smith, Mauricio Hernández-Ávila, Travis Sanchez +1 more