ResearchProjects

PrEP is an effective HIV prevention intervention, but successful PrEP implementation among young Black men who have sex with men (YBMSM) is limited by several structural factors that impede engagement. This proposal identified places where YBMSM spend time who are at increased risk for HIV, but not yet on PrEP through a construction of place-based affiliation networks using objective GPS data.

This study demonstrated how place-based affiliation approach can reach large numbers of PrEP candidates by targeting a small number of places that are connected to more people who would be good candidates for PrEP uptake.

Abstract on NIH RePORTER

Shrader CH, Duncan DT, Driver R, Arroyo-Flores JG, Coudray MS, Moody R, Chen YT, Skaathun B, Young L, del Vecchio N, Fujimoto K, Knox JR, Kanamori M, Schneider JA (2025).
Investigating social network peer effects on HIV care engagement using a fuzzy-like matching approach: Cross-sectional secondary analysis of the N2 cohort study
JMIR Public Health and Surveillance, 11, e64497. doi: 10.2196/64497. PMCID: PMC12080284.

Shrader CH, Duncan DT, Santoro A, Geng E, Kranzler HR, Hasin D, Shelley D, Kutner B, Sherman SE, Chen YT, Durrell M, Eavou R, Hillary H, Goedel W, Schneider JA, Knox JR (2025).
Social network alcohol use is associated with individual-level alcohol use among Black sexually minoritized men and gender-expansive people: Findings from the Neighborhoods and Networks (N2) cohort study
Alcoholism, Clinical and Experimental Research, 49 (4), 783-791. doi: 10.1111/acer.70009.

Chen YT, Shrader CH, Duncan DT, Rudolph AE, Regan SD, Kim B, Pagkas-Bather J, Knox J, Fujimoto K, Schneider JA (2024).
Using GPS-defined venue-based affiliation networks among Black sexually minoritized men and transgender women to identify locations for HIV prevention interventions
Annals of Epidemiology, 96, 80-87. doi: 10.1016/j.annepidem.2024.07.001. PMCID: PMC11365700.

Shrader CH, Duncan DT, Driver R, Chen YT, Knox J, Bond K, Weinstein ER, Durrell M, Hanson H, Eavou R, Goedel WC, Schneider JA (2024).
Social network characteristics associated with more frequent HIV and STI prevention conversations: The N2 cohort study in Chicago
AIDS and Behavior, 28 (7), 2463-2475. doi: 10.1007/s10461-024-04348-5. PMCID: PMC11584229.

Shrader CH, Duncan DT, Knox J, Chen YT, Driver R, Russell JS, Moody RL, Kanamori M, Durrell M, Hanson H, Eavou R, Goedel WC, Schneider JA (2024).
A network science approach to sex-polydrug use among Black sexually minoritized men and transgender women: The N2 cohort study
Prevention Science, 25 (4), 638-649. doi: 10.1007/s11121-023-01639-6. PMCID: PMC11588306.

Knox JR, Dolotina B, Moline T, Matthews I, Durrell M, Hanson H, Almirol E, Hotton A, Pagkas-Bather J, Chen YT, English D, Manuzak J, Rower JE, Miles C, Millar B, Jean-Louis G, Rendina HJ, Martins SS, Grov C, Hasin DS, Carrico AW, Shoptaw S, Schneider JA, Duncan DT (2023).
HIV prevention and care among Black cisgender sexual minority men and transgender women: Protocol for an HIV status-neutral cohort study using an observational-implementation hybrid approach
JMIR Research Protocols, 12, e48548. doi: 10.2196/48548. PMCID: PMC10724817.

Shrader CH, Duncan DT, Chen YT, Driver R, Russell J, Moody RL, Knox J, Skaathun B, Durrell M, Hanson H, Eavou R, Goedel WC, Schneider JA (2023).
Latent profile patterns of network-level norms and associations with individual-level sexual behaviors: The N2 cohort study in Chicago
Archives of Sexual Behavior, 52 (6), 2355-2372. doi: 10.1007/s10508-023-02555-0. PMCID: PMC10480356.

Moody RL, Chen YT, Schneider JA, Knox J, Timmins L, Hanson H, Koli K, Durrell M, Dehlin J, Eavou R, Martins SS, Duncan DT (2022).
Polysubstance use in a community sample of Black cisgender sexual minority men and transgender women in Chicago during initial COVID-19 pandemic peak
Substance Abuse Treatment Prevention and Policy, 17 (1), 4. doi: 10.1186/s13011-022-00433-x. PMCID: PMC8796750.

Timmins L, Schneider JA, Chen YT, Pagkas-Bather J, Kim B, Moody RL, Al-Ajlouni YA, Lee F, Koli K, Durrell M, Eavou R, Hanson H, Park SH, Duncan DT (2022).
COVID-19 stressors and symptoms of depression and anxiety among Black cisgender sexual minority men and Black transgender women during the initial peak of the COVID-19 pandemic
Social Psychiatry and Psychiatric Epidemiology, 57 (10), 1999-2011. doi: 10.1007/s00127-022-02282-2. PMCID: PMC9030680.

Chen YT, Duncan DT, Del Vecchio N, Timmins L, Pagkas-Bather J, Lacap S, Hotton A, Knox J, Hanson H, Koli K, Durrell M, Dehlin J, Schneider JA (2021).
COVID-19-related stressors, sex behaviors, and HIV status neutral care among Black men who have sex with men and transgender women in Chicago, USA
Journal of Acquired Immune Deficiency Syndromes, 88 (3), 261-271. doi: 10.1097/QAI.0000000000002770. PMCID: PMC8518204.