PMID- 29847479 OWN - NLM STAT- MEDLINE DCOM- 20191028 LR - 20240329 IS - 1944-7884 (Electronic) IS - 1525-4135 (Print) IS - 1525-4135 (Linking) VI - 79 IP - 1 DP - 2018 Sep 1 TI - Does Partner Selection Mediate the Relationship Between School Attendance and HIV/Herpes Simplex Virus-2 Among Adolescent Girls and Young Women in South Africa: An Analysis of HIV Prevention Trials Network 068 Data. PG - 20-27 LID - 10.1097/QAI.0000000000001766 [doi] AB - OBJECTIVE: School attendance prevents HIV and herpes simplex virus-2 (HSV-2) in adolescent girls and young women, but the mechanisms to explain this relationship remain unclear. Our study assesses the extent to which characteristics of sex partners, partner age, and number mediate the relationship between attendance and risk of infection in adolescent girls and young women in South Africa. DESIGN: We use longitudinal data from the HIV Prevention Trials Network 068 randomized controlled trial in rural South Africa, where girls were enrolled in early adolescence and followed in the main trial for more than 3 years. We examined older partners and the number of partners as possible mediators. METHODS: We used the parametric g-formula to estimate 4-year risk differences for the effect of school attendance on the cumulative incidence of HIV/HSV-2 overall and the controlled direct effect (CDE) for mediation. We examined mediation separately and jointly for the mediators of interest. RESULTS: We found that young women with high attendance in school had a lower cumulative incidence of HIV compared with those with low attendance (risk difference = -1.6%). Partner age difference (CDE = -1.2%) and the number of partners (CDE = -0.4%) mediated a large portion of this effect. In fact, when we accounted for the mediators jointly, the effect of schooling on HIV was almost removed, showing full mediation (CDE = -0.3%). The same patterns were observed for the relationship between school attendance and cumulative incidence of HSV-2 infection. CONCLUSION: Increasing school attendance reduces the risk of acquiring HIV and HSV-2. Our results indicate the importance of school attendance in reducing partner number and partner age difference in this relationship. FAU - Stoner, Marie C D AU - Stoner MCD AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. FAU - Edwards, Jessie K AU - Edwards JK AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. FAU - Miller, William C AU - Miller WC AD - Division of Epidemiology, The Ohio State University, Columbus, OH. FAU - Aiello, Allison E AU - Aiello AE AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. FAU - Halpern, Carolyn T AU - Halpern CT AD - Department of Maternal and Child Health, University of North Carolina, Chapel Hill, NC. FAU - Julien, Aimee AU - Julien A AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. FAU - Rucinski, Katherine B AU - Rucinski KB AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. FAU - Selin, Amanda AU - Selin A AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. FAU - Twine, Rhian AU - Twine R AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. FAU - Hughes, James P AU - Hughes JP AD - Department of Biostatistics, University of Washington, Seattle, WA. AD - Fred Hutchinson Cancer Research Center, Seattle, WA. FAU - Wang, Jing AU - Wang J AD - Fred Hutchinson Cancer Research Center, Seattle, WA. FAU - Agyei, Yaw AU - Agyei Y AD - School of Medicine, Johns Hopkins University, Baltimore, MD. FAU - Gomez-Olive, Francesc Xavier AU - Gomez-Olive FX AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. AD - INDEPTH Network, Accra, Ghana. FAU - Wagner, Ryan G AU - Wagner RG AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. AD - Department of Public Health and Clinical Medicine, Epidemiology and Global Health Unit, Umea University, Umea, Sweden. FAU - Laeyendecker, Oliver AU - Laeyendecker O AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, MD. FAU - Macphail, Catherine AU - Macphail C AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. AD - School of Health and Society, University of Wollongong, Wollongong, New South Wales, Australia. AD - Wits Reproductive Health and HIV Research Institute, University of the Witwatersrand, Johannesburg, South Africa. FAU - Kahn, Kathleen AU - Kahn K AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. AD - INDEPTH Network, Accra, Ghana. AD - Department of Public Health and Clinical Medicine, Epidemiology and Global Health Unit, Umea University, Umea, Sweden. FAU - Pettifor, Audrey AU - Pettifor A AD - Department of Epidemiology, University of North Carolina, Chapel Hill, NC. AD - MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. LA - eng GR - UM1 AI069423/AI/NIAID NIH HHS/United States GR - T32 AI007001/AI/NIAID NIH HHS/United States GR - R01 MH110186/MH/NIMH NIH HHS/United States GR - 069683/Z/02/Z/WT_/Wellcome Trust/United Kingdom GR - R01 MH087118/MH/NIMH NIH HHS/United States GR - MRC_/Medical Research Council/United Kingdom GR - 085477/Z/08/Z/WT_/Wellcome Trust/United Kingdom GR - 058893/Z/99/A/WT_/Wellcome Trust/United Kingdom GR - UM1 AI068619/AI/NIAID NIH HHS/United States GR - UM1 AI068613/AI/NIAID NIH HHS/United States GR - Wellcome Trust/United Kingdom GR - R24 HD050924/HD/NICHD NIH HHS/United States GR - P2C HD050924/HD/NICHD NIH HHS/United States GR - 085477/B/08/Z/WT_/Wellcome Trust/United Kingdom GR - UM1 AI068617/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Acquir Immune Defic Syndr JT - Journal of acquired immune deficiency syndromes (1999) JID - 100892005 SB - IM MH - Adolescent MH - Clinical Trials, Phase III as Topic MH - Female MH - HIV Infections/epidemiology/*prevention & control MH - Herpes Genitalis/epidemiology/*prevention & control MH - Humans MH - Longitudinal Studies MH - Male MH - Randomized Controlled Trials as Topic MH - *Schools MH - *Sexual Partners MH - South Africa/epidemiology MH - Young Adult PMC - PMC6092209 MID - NIHMS969310 COIS- Declaration of Interests: We declare no competing interests. EDAT- 2018/05/31 06:00 MHDA- 2019/10/29 06:00 PMCR- 2019/09/01 CRDT- 2018/05/31 06:00 PHST- 2018/05/31 06:00 [pubmed] PHST- 2019/10/29 06:00 [medline] PHST- 2018/05/31 06:00 [entrez] PHST- 2019/09/01 00:00 [pmc-release] AID - 10.1097/QAI.0000000000001766 [doi] PST - ppublish SO - J Acquir Immune Defic Syndr. 2018 Sep 1;79(1):20-27. doi: 10.1097/QAI.0000000000001766.