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Youth with perinatal HIV exposure have demonstrated high rates of emotional-behavioral problems. Few studies have longitudinally examined racial/ethnic disparities in such functioning across adolescence, a critical time for targeting prevention/intervention efforts.
The Pediatric HIV/AIDS Cohort Study Adolescent Master Protocol is one of the largest US-based cohort studies of youth with perinatal HIV (YPHIV) infection or HIV exposed but uninfected (YPHEU).
Youth and caregivers individually completed the Behavior Assessment System for Children, second edition, every 2 years between ages 7 and 19 years. We used adjusted mixed-effects models to evaluate whether mean youth-reported emotional concerns and caregiver-reported behavioral concerns differed by race/ethnicity. We used group-based trajectory models to identify groups having similar emotional-behavioral trajectories, followed by multinomial models to determine which factors predicted group membership.
Three hundred ninety-one YPHIV and 209 YPHEU (hat Black non-Hispanic YPHEU are a vulnerable subgroup. Contributing factors that could inform interventions include the caregiver's health, household characteristics, and psychiatric status.
Volatility in sexual contact rates has been recognized as an important factor influencing HIV transmission dynamics. One-time partnerships may be particularly important given the potential to quickly accumulate large number of contacts. Yet, empirical data documenting individual variation in contact rates remain rare. This study provides much needed data on temporal variation in one-time partners to better understand behavioral dynamics and improve the accuracy of transmission models.
Data for this study were obtained from a longitudinal cohort study of young men who have sex with men and transgender women in Chicago. Participants provided sexual network data every 6 months for 2 years. A series of random effects models examined variation in one-time partnership rates and disaggregated within and between associations of exposure variables. Exposure variables included prior number of one-time partners, number of casual partners, and having a main partner.
Results indicated substantial between-person and uals alone may be insufficient to identify periods of highest risk. Future studies should use these estimates to more accurately model how volatility impacts HIV transmission and better understand how this variation influences intervention effectiveness.
This study examined whether recommended viral load (VL) classifications by the Department of Health and Human Services map onto changes in brain integrity observed in people living with HIV (PLWH).
Three hundred forty-nine PLWH on combination antiretroviral therapy meeting criteria for virologic suppression (VS) (VL ≤ 20 copies/mL; n = 206), "low-level viremia" (20-200 copies/mL; n = 63), or virologic failure (VF) (>200 copies/mL; n = 80) and 195 demographically similar HIV-negative controls were compared for cognition and brain volumes from 10 regions of interest that are sensitive to HIV. Changes in cognition and brain volumes were examined in a subset of PLWH (n = 132) who completed a follow-up evaluation (mean interval = 28 months) and had no change in treatment regimen.
Significant differences in cognition and brain volumes were observed between the HIV-negative control and VS groups compared with those in the VF groups, with few differences observed between the 3 PLWH subgroups. Longitudinally, PLWH who continued to have VF exhibited a greater decline in cognition and brain volumes compared with PLWH who remained with VS. Observed longitudinal changes in cognition correlated with brain volume changes.
PLWH with continued VF (consecutive VL measurements of >200 copies/mL) represent a cause for clinical concern and may benefit from change in treatment in addition to consideration of other potential etiologies of VF to reduce loss of brain integrity.
200 copies/mL) represent a cause for clinical concern and may benefit from change in treatment in addition to consideration of other potential etiologies of VF to reduce loss of brain integrity.
This study aims to assess the product-related, relationship-related, and sex-related factors that act as facilitators and barriers to the acceptability of a vaginal ring (VR) for HIV prevention among adolescent girls.
Qualitative study.
Ninety-six girls aged 15-17 years from 6 urban US sites were enrolled in MTN-023/IPM 030, a 24-week randomized controlled trial, for assessing the safety and acceptability of a dapivirine VR for HIV prevention. At week 24, 21 girls were randomly selected to participate in in-depth interviews. Interviews were transcribed verbatim and data analyzed using a thematic analysis approach. Facilitators and barriers to VR acceptability related to participants' relationships, sexual activity, and characteristics of the VR product were identified.
Factors related to relationships rarely seemed to act as barriers to VR acceptability; most participants disclosed VR use to sexual partners, and positive reactions from sexual partners, which were common, seemed to facilitate VR acceptability. Emotional and/or physical discomfort surrounding VR use during sex was mentioned occasionally as a barrier to VR acceptability. AZD1656 Product characteristics were most frequently mentioned as barriers to VR acceptability. Many participants reported concerns about the large size of the VR on first impression. Although most found the VR comfortable, some reported pain with VR insertion. Several participants were concerned about VR cleanliness, particularly during menstruation.
Product considerations, specifically size and use during menstruation, were the most commonly reported barriers to VR acceptability in this study. Adolescent girls may require additional counseling to assuage product concerns regarding a VR for HIV prevention.
Product considerations, specifically size and use during menstruation, were the most commonly reported barriers to VR acceptability in this study. Adolescent girls may require additional counseling to assuage product concerns regarding a VR for HIV prevention.
Website: https://www.selleckchem.com/products/azd1656.html
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