Browsing by Author "Brian Pence"

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    Associations of father and adult male presence with first pregnancy and HIV infection: Longitudinal evidence from adolescent girls and young women in rural South Africa (HPTN068)
    (2021-01-08) Lisa Marie Albert; Jess Edwards; Brian Pence; Ilene S; Speizer; Susan Hillis; Kathleen Kahn; F Xavier Gómez-Olivé; Ryan G. Wagner; Rhian Twine; Audrey Pettifor
    This study, a secondary analysis of the HPTN 068 randomized control trial, aimed to quantify the association of father and male presence with HIV incidence and first pregnancy among 2533 school-going adolescent girls and young women (AGYW) in rural South Africa participating in the trial between March 2011 and April 2017. Participants' ages ranged from 13-20 years at study enrollment and 17-25 at the post-intervention visit. HIV and pregnancy incidence rates were calculated for each level of the exposure variables using Poisson regression, adjusted for age using restricted quadratic spline variables, and, in the case of pregnancy, also adjusted for whether the household received a social grant. Our study found that AGYW whose fathers were deceased and adult males were absent from the household were most at risk for incidence of first pregnancy and HIV (pregnancy: aIRR = 1.30, Wald 95% CI 1.05, 1.61, Wald chi-square p = 0.016; HIV: aIRR = 1.27, Wald 95% CI 0.84, 1.91, Wald chi-square p = 0.263) as compared to AGYW whose biological fathers resided with them. For AGYW whose fathers were deceased, having other adult males present as household members seemed to attenuate the incidence (pregnancy: aIRR = 0.92, Wald 95% CI 0.74, 1.15, Wald chi-square p = 0.462; HIV: aIRR = 0.90, Wald 95% CI 0.58, 1.39, Wald chi-square p = 0.623) such that it was similar, and therefore not statistically significantly different, to AGYW whose fathers were present in the household.
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    Built Environment and HIV Linkage to Care in Rural South Africa
    (2023-01) Nosipho Shangase; Brian Pence; Sheri A. Lippman; Mi-Suk Kang Dufour; Chodziwadziwa Whiteson Kabudula; F. Xavier Gomez-Olive; Kathleen Kahn; Audrey Pettifor
    Background: We assessed built environment (residential density, landuse mix and aesthetics) and HIV linkage to care (LTC) among 1,681 (18–49 years-old) residents of 15 Mpumalanga villages, South Africa. Methods: Multilevel models (linear-binomial) were used for the association between built environment, measured using NEWS for Africa, and LTC from a clinical database of 9 facilities (2015–2018). Additionally, we assessed effect-measure modification by universal test-and-treat policy (UTT). Results: We observed, a significant association in the adjusted 3-month probability of LTC for residential density (risk difference (RD)%: 5.6, 95%CI: 1.2–10.1), however, no association for land-use mix (RD%: 2.4, 95%CI: 0.4, 5.2) and aesthetics (RD%: 1.2, 95% CI: 4.5–2.2). Among those diagnosed after UTT, residents of high land-use villages were more likely to link-to-care than those of low land-use villages at 12 months (RD%: 4.6, 95%CI: 1.1–8.1, p < 0.04), however, not at 3 months (RD%: 3.0, 95%CI: 2.1–8.0, p > 0.10). Conclusion: Findings suggest, better built environment conditions (adequate infrastructure, proximity to services etc.) help facilitate LTC. Moreover, UTT appears to have a protective effect on LTC.
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    Effect of quality of caregiver-adolescent relationship on sexual debut, transactional sex and on age-disparate relationships among young women in rural South Africa enrolled in HPTN 068
    (2022-04-01) Nosipho Shangase; Jess Edwards; Brian Pence; Allison Aiello; Andrea Hussong; Xavier Gómez-Olivé; Kathleen Kahn; Marie Stoner; Audrey Pettifor
    Background: Adolescent girls and young women (AGYW) remain burdened by the HIV epidemic. Positive caregiver-child relationships are associated with safe sexual behaviors in young people; yet, this literature often highlights the role of parent-child communication and parental monitoring, neglecting the importance of emotional relationships between a caregiver and adolescent. Setting: We used longitudinal data from HIV Prevention Trial Network 068-conducted among 2533 AGYW (13-20 years) over a period of 5 years in Agincourt, South Africa. Method: Kaplan-Meier and Cox models were used to estimate the effect of quality of caregiver-adolescent relationships (caring and closeness) on sexual debut, and log-binomial models with generalized estimating equations were used to examine the relationship between our exposures and transactional sex and age-disparate relationships. Results: Sexual debut was delayed among those who reported high levels of caregiver caring [hazard ratio: 0.80, 95% confidence interval (CI): 0.69 to 0.93] and caregiver closeness (hazard ratio: 0.80, 95% CI: 0.68 to 0.95). AGYW who reported high quality caregiver-adolescent relationships had a lower risk of transactional sex [caring: risk ratio (RR): 0.67, 95% CI: 0.58 to 0.78; closeness: RR: 0.58; 95% CI: 0.50 to 0.67]. Similarly, those with high-quality caregiver-adolescent relationships were less likely to be in an age-disparate relationship (caring: RR: 0.68, 95% CI: 0.58 to 0.79; closeness: RR: 0.77, 95% CI: 0.66 to 0.90). Conclusions: Findings indicate high-quality caregiver-adolescent relationships are associated with delayed sexual debut, a lower risk of transactional sex, and having an older partner. Family-centered interventions are needed to improve relationships between AGYW and caregivers.