Research

My research interests primarily center around health equity for marginalized communities, specifically focusing on improving sexual health (HIV/STIs), substance use, and mental health outcomes. I'm interested in social epidemiology, social network analysis, intervention development and implementation, and community-led research.

I work at the Sexual Health Equity Lab (the SHEL) at San Diego State University's School of Public Health under the direction of Dr. Erik Storholm. At the SHEL, I work on projects that focus on improving mental health, reducing substance abuse, and preventing HIV/STI transmission through behavioral and biomedical interventions.

I also work with Dr. Britt Skaathun as a predoctoral fellow in the T32 Substance Use, HIV and Related Infections (PI: Steffanie Strathdee/Natasha Martin) at UC San Diego. This work focuses on using social network analysis methodology to address HIV prevention among people who inject drugs that are living along the US-Mexico border. 

Click here to see my CV.

Published manuscripts

1. Ling Murtaugh K, Dopp AR, Nacht CL, Flynn R, Opalo C, Storholm ED. Identity-based behavioral economic incentives increased PrEP adherence for transgender and nonbinary adults in a trans-led PrEP navigation program. AIDS and Behavior. Published online July 14, 2026. doi:10.1007/s10461-026-05206-2.

2. Nacht CL, Skaathun B, Ogarrio K, Durbin-Matrone R, Wright L, Reich R, Reich K, Stojanovski K. Barriers and facilitators to initiating and adhering to harm reduction services among people who inject drugs in the United States: a rapid review. Harm Reduction Journal. 2026;23(1):56. doi:10.1186/s12954-025-01376-9.

3. Wagner GJ, Siconolfi DE, Hong C, Nacht CL, Storholm ED. Intimate partner violence and its association with symptoms of depression and post-traumatic stress disorder among cisgender sexual minority men in the United States. Sexual and Gender Diversity in Social Services. Published online February 25, 2026. doi:10.1080/29933021.2026.2633505.

4. Nacht CL, Jessup O, Baumgardner M, Wells J, Opalo C, Marroquin M, Flynn R, Dopp AR, Ling Murtaugh K, Storholm ED. Qualitative client perspectives on PrEP Well: a community-led PrEP implementation project with structural supports at a transgender and nonbinary community center. AIDS Care. 2026;38(5):1080–1092. doi:10.1080/09540121.2025.2604604.

5. Storholm ED, Randazzo J, Hong C, Siconolfi DE, Nacht CL, Lee SD, Wagner GJ. Intimate partner violence perpetration and PrEP use among sexual minority men: the mediating roles of internalized homonegativity and PrEP stigma. AIDS and Behavior. 2025;29(11):3595–3607. doi:10.1007/s10461-025-04802-y.

6. Nacht CL, Reynolds HE, Campbell CK, Kielhold K, Vincent W, Siconolfi DE, Kegeles SM, Pollack LM, Storholm ED. COVID-19 and the syndemic of intimate partner violence, mental health, substance use, and HIV care engagement among Black sexual minority men living with HIV in the US South. International Journal of Environmental Research and Public Health. 2025;22(7):1–13. doi:10.3390/ijerph22071065.

7. Nacht CL, Lentz C, Siconolfi DE, Vincent W, Pollack LM, Kegeles SM, Storholm ED. Untangling discrimination: the impact of internalizing oppression on HIV treatment engagement among young Black sexual minority men in the Southern US. AIDS and Behavior. 2025;29(10):3264-3274. doi:10.1007/s10461-025-04774-z.

8. Ma J, Wagner G, Siconolfi D, Nacht CL, Storholm E. Race-based discrimination, internalized racism, and anticipatory stigma among sexual minority men in same-race and interracial relationships. Journal of Homosexuality. 2025;73(5):1205-1227. doi:10.1080/00918369.2025.2501408.

9. Storholm ED, Nacht CL, Ling Murtaugh K, Opalo C, Marroquin M, Flynn R, Baumgardner M, Dopp AR. Preliminary outcomes from PrEP Well: a community-led, multicomponent HIV prevention strategy implemented in a transgender community health center. Journal of Community Health. 2025;50(5):842-859. doi:10.1007/s10900-025-01468-4.

10. Nacht CL, Strathdee SA, Harvey-Vera A, Vera CF, Rangel G, Klausner JD, Artamonova I, Abramovitz D, Skaathun B. Prevalence and factors associated with sexually transmitted infections among people who inject drugs in the San Diego–Tijuana border region. Open Forum Infectious Diseases. 2025;12(4):ofaf171. doi:10.1093/ofid/ofaf171.

11. Wagner GJ, Siconolfi DE, Nacht CL, Storholm ED. Disclosure and help seeking related to intimate partner violence (IPV) victimization, perpetration, and bidirectional abuse in a national sample of sexual minority men. Journal of Interpersonal Violence. 2025;40(19-20):4574-4605. doi:10.1177/08862605241298301.

12. Nacht CL, Contreras J, Ehlenbach M, McGregory K, Houser L, Allen BJ. Long-acting but reversible: opportunities to address provider bias in contraceptive care. Hospital Pediatrics. 2024;14(8):690–699. doi:10.1542/hpeds.2023-007673.

13. Nacht CL, Reynolds HE, Jessup O, Amato M, Storholm ED. Social support and PrEP use among sexual minority men: a scoping review. AIDS and Behavior. 2024;28(11):3559-3573. doi:10.1007/s10461-024-04446-4.

14. Reynolds HE, Nacht CL, Opalo C, Marroquin M, Dopp A, Ling Murtaugh K, Flynn R, Baumgardner M, Storholm ED. “By Us, for Us”: qualitative insights to inform implementation of comprehensive pre-exposure prophylaxis services in a trans community center. Annals of LGBTQ Public and Population Health. 2024;6(1). doi:10.1891/LGBTQ-2023-0038.

15. Skaathun B, Strathdee SA, Shrader C-H, Nacht CL, Borquez A, Artamonova I, Harvey-Vera A, Vera CF, Rangel G, Ignacio C, Woodworth B, Chaillon A, Vasylyeva TI. HIV-1 transmission dynamics among people who inject drugs on the US/Mexico border during the COVID-19 pandemic: a prospective cohort study. The Lancet Regional Health – Americas. 2024;33:100751. doi:10.1016/j.lana.2024.100751.

16. Jessup O, Nacht CL, Amato M, Reynolds HE, Felner JK, Hong C, Siconolfi DE, Wagner GJ, Stephenson R, Muthuramalingam S, Storholm ED. How intimate partner violence is influenced by social identity among sexual minority men. LGBT Health. 2024;11(6):465-474. doi:10.1089/lgbt.2023.0129.

17. Scheer ER, Werner NE, Coller RJ, Nacht CL, Petty L, Tang M, Ehlenbach M, Kelly MM, Finesilver S, Warner G, Katz B, Keim-Malpass J, Lunsford CD, Letzkus L, Desai SS, Valdez RS. Designing for caregiving networks: a case study of primary caregivers of children with medical complexity. Journal of the American Medical Informatics Association. 2024;31(5):1151–1162. doi:10.1093/jamia/ocae026.

18. Nacht CL, Jacobson N, Shiyanbola O, Smith CA, Hoonakker PLT, Coller RJ, Dean SM, Sklansky DJ, Smith W, Sprackling CM, Kelly MM. Perception of physicians' notes among parents of different health literacy levels. Hospital Pediatrics. 2024;14(2):108–115. doi:10.1542/hpeds.2023-007240.

19. Webber S, Semia S, Nacht CL, Garcia S, Kloster H, Vellardita L, Kieren MQ, Kelly MM. Physician work-personal intersection: a scoping review of terms, definitions, and measures. Academic Medicine. 2024;99(3):331-339. doi:10.1097/ACM.0000000000005579.

20. Watkinson MD, Ehlenbach M, Chung PJ, Kelly M, Werner N, Jolliff A, Katz B, Marleau H, Nacht CL, Warner G, Coller RJ. Interventions in the home and community for medically complex children: a systematic review. Pediatrics. 2023;151(5):e2022058352. doi:10.1542/peds.2022-058352.

21. Storholm ED, Reynolds HE, Muthuramalingam S, Nacht CL, Felner JK, Wagner GJ, Stephenson R, Siconolfi DE. Intimate partner violence and the sexual health of sexual minority men. LGBT Health. 2023;10(Suppl 1):S39–S48. doi:10.1089/lgbt.2023.0134.

22. Sprackling CM, Kieren MQ, Nacht CL, Moreno MA, Wooldridge A, Kelly MM. Adolescent access to clinicians' notes: adolescent, parent, and clinician perspectives. Journal of Adolescent Health. 2024;74(1):155-160. doi:10.1016/j.jadohealth.2023.08.008.

23. Kelly MM, Hoonakker PLT, Nacht CL, Smith CA, Dean SM, Sklansky DJ, Smith W, Sprackling CM, Zellmer BM, Coller RJ. Parent perspectives on sharing pediatric hospitalization clinical notes. Pediatrics. 2023;151(1):e2022057756. doi:10.1542/peds.2022-057756.

24. Werner NE, Fleischman A, Warner G, Barton HJ, Kelly MM, Ehlenbach ML, Wagner T, Finesilver S, Katz BJ, Howell KD, Nacht CL, Scheer N, Coller RJ. Feasibility testing of Tubes@HOME: a mobile application to support family-delivered enteral care. Hospital Pediatrics. 2022;12(7):663-673. doi:10.1542/hpeds.2022-006532.

25. Webber S, Nackers K, Kelly MM, Nacht CL, Tiedt K, Allen A, Eickhoff J, Babal JC. Gender-based linguistic analysis of pediatric clinical faculty evaluations. Academic Pediatrics. 2022;22(2):324–331. doi:10.1016/j.acap.2021.12.009.

26. Tiedt K, Webber S, Babal J, Nackers KAM, Allen A, Nacht CL, Coller RJ, Eickhoff J, Sklansky DJ, Kieren M, Shadman KA, Kelly MM. Gender difference in teaching evaluation scores of pediatric faculty. Academic Pediatrics. 2023;23(3):564-568. doi:10.1016/j.acap.2022.07.017.

27. Storholm ED, Siconolfi DE, Wagner GJ, Huang W, Nacht CL, Sallabank G, Felner JK, Wolf J, Lee SD, Stephenson R. Intimate partner violence and HIV prevention among sexual minority men: protocol for a prospective mixed methods cohort study. JMIR Research Protocols. 2022;11(11):e41453. doi:10.2196/41453.

28. Storholm ED, Ogunbajo A, Nacht CL, Opalo C, Horvath K, Lyman P, Flynn R, Reback CJ, Blumenthal J, Moore DJ, Bolan R, Morris S. Facilitators of PrEP persistence among Black and Latinx transgender women in a PrEP demonstration project in Southern California. Behavioral Medicine. 2024;50(1):63-74. doi:10.1080/08964289.2022.2105794.

29. Shadman KA, Edmonson MB, Coller RJ, Sklansky DJ, Nacht CL, Zhao Q, Kelly MM. US hospital stays in children and adolescents with acetaminophen poisoning. Hospital Pediatrics. 2022;12(2):e60–e67. doi:10.1542/hpeds.2021-005816.

30. Nacht CL, Kelly MM, Edmonson MB, Sklansky DJ, Shadman KA, Kind AJH, Zhao Q, Barreda CB, Coller RJ. Association between neighborhood disadvantage and pediatric readmissions. Maternal and Child Health Journal. 2022;26(1):31-41. doi:10.1007/s10995-021-03310-4.

31. Nacht CL, Felner JK, Muthuramalingam S, Towner W, Ling Grant D, Martos A, Chang JM, Hechter R, Storholm ED. Barriers and opportunities to improve the implementation of patient screening and linkage to pre-exposure prophylaxis in primary care. Journal of Clinical Research in HIV/AIDS and Prevention. 2022;4(2):15–31. doi:10.14302/issn.2324-7339.jcrhap-22-4371.

32. Kelly MM, DeMuri GP, Barton HJ, Nacht CL, Butteris SM, Katz B, Burns R, Koval S, Ehlenbach ML, Stanley J, Wald ER, Warner G, Wilson LF, Myrah GE, Parker DE, Coller RJ. Priorities for safer in-person school for children with medical complexity during COVID-19. Pediatrics. 2022;149(3):e202105443. doi:10.1542/peds.2021-054434.

33. Coller RJ, Lerner CF, Chung PJ, Klitzner TS, Cushing CC, Warner G, Nacht CL, Thompson LR, Eickhoff J, Ehlenbach ML, Garrity BM, Bowe T, Berry JG. Caregiving and confidence to avoid hospitalization for children with medical complexity. Journal of Pediatrics. 2022;247:109–115.e2. doi:10.1016/j.jpeds.2022.05.011.

34. Babal JC, Webber S, Nacht CL, Nackers KAM, Tiedt K, Allen A, Allen BJ, Kelly MM. Recognizing and mitigating gender bias in medical teaching assessments. Journal of Graduate Medical Education. 2022;14(2):139–143. doi:10.4300/JGME-D-21-00774.1.

35. Williams BS, Nacht C, Fiore MC, Kelly MM. Smoke exposure disclosure: parental perspectives of screening in the inpatient setting. Hospital Pediatrics. 2021;11(10):e210–e217. doi:10.1542/hpeds.2021-005808.

36. Zellmer BM, Nacht CL, Coller RJ, Hoonakker PLT, Smith CA, Sklansky DJ, Dean SM, Smith W, Sprackling CM, Ehlenfeldt BD, Kelly MM. BedsideNotes: sharing physicians' notes with parents during hospitalization. Hospital Pediatrics. 2021;11(5):503–508. doi:10.1542/hpeds.2020-005447.

37. Kelly MM, Smith CA, Hoonakker PLT, Nacht CL, Dean SM, Sklansky DJ, Smith W, Moreno MA, Thurber AS, Coller RJ. Stakeholder perspectives in anticipation of sharing physicians' notes with parents of hospitalized children. Academic Pediatrics. 2021;21(2):259–264. doi:10.1016/j.acap.2020.11.018.

38. Kelly MM, Sklansky DJ, Nackers KAM, Coller RJ, Dean SM, Eickhoff JC, Bentley NL, Nacht CL, Shadman KA. Evaluation and improvement of intern progress note assessments and plans. Hospital Pediatrics. 2021;11(4):401–405. doi:10.1542/hpeds.2020-003244.

39. Coller RJ, Lerner CF, Berry JG, Klitzner TS, Allshouse C, Warner G, Nacht CL, Thompson LR, Eickhoff J, Ehlenbach ML, Bonilla AJ, Venegas M, Garrity BM, Casto E, Bowe T, Chung PJ. Linking parent confidence and hospitalization through mobile health: a multisite pilot study. Journal of Pediatrics. 2021;230:207–214.e1. doi:10.1016/j.jpeds.2020.11.049.

40. Nackers KAM, Shadman KA, Kelly MM, Waterman HG, Bentley NL, Gorski DP, Chorney C, Eickhoff JC, Nacht CL, Sklansky DJ. Resident workshop to improve inpatient documentation using the Progress Note Assessment and Plan Evaluation (PNAPE) tool. MedEdPORTAL. 2020;16:11040. doi:10.15766/mep_2374-8265.11040.

41. Nacht C, Agingu W, Otieno F, Odhiambo F, Mehta SD. Antimicrobial resistance patterns in Neisseria gonorrhoeae among male clients of a sexually transmitted infections clinic in Kisumu, Kenya. International Journal of STD & AIDS. 2020;31(1):46–52. doi:10.1177/0956462419881087.

42. Kelly MM, Coller RJ, Hoonakker PLT, Nacht CL, Dean SM. Provider experiences with offering families bedside health record access across a children's hospital. Hospital Pediatrics. 2020;10(11):1002–1005. doi:10.1542/hpeds.2020-0044.

43. Cheng CF, Werner NE, Doutcheva N, Warner G, Barton HJ, Kelly MM, Ehlenbach ML, Wagner T, Finesilver S, Katz BJ, Nacht C, Coller RJ. Codesign and usability testing of a mobile application to support family-delivered enteral tube care. Hospital Pediatrics. 2020;10(8):641–650. doi:10.1542/hpeds.2020-0076.

44. Telles S, Sayal N, Nacht C, Chopra A, Patel K, Wnuk A, Dalvi P, Bhatia K, Miranpuri G, Anand A. Yoga: can it be integrated with treatment of neuropathic pain? Annals of Neurosciences. 2019;26(2):82–91. doi:10.5214/ans.0972.7531.260208.

45. Miranpuri GS, Meethal SV, Sampene E, Chopra A, Buttar S, Nacht C, Moreno N, Patel K, Liu L, Singh A, Singh CK, Hariharan N, Iskandar B, Resnick DK. Folic acid modulates matrix metalloproteinase-2 expression, alleviates neuropathic pain, and improves functional recovery in spinal cord-injured rats. Annals of Neurosciences. 2017;24(2):74–81. doi:10.1159/000475896.

46. Ahmed MM, Lee H, Clark Z, Miranpuri GS, Nacht C, Patel K, Liu L, Joslin J, Kintner D, Resnick DK. Pathogenesis of spinal cord injury-induced edema and neuropathic pain: expression of multiple isoforms of wnk1. Annals of Neurosciences. 2014;21(3):97–103. doi:10.5214/ans.0972.7531.210305.