HIV combination prevention and declining orphanhood among adolescents, Rakai, Uganda, 2001-18: an observational community cohort study

Voluntary medical male circumcision and educational gradient in relation to HIV infection among sexually active adult men in Eswatini: evidence from the national surveys in 2006-2007 and 2016

BACKGROUND

To address knowledge gaps, this study examined social determinants, such as education attainment and HIV prevention, among sexually active men (SAM), with a focus on voluntary medical male circumcision (VMMC).

METHODS

Two nationally representative surveys, the Eswatini Demographic and Health Survey 2006 and the Eswatini HIV Incidence Measurement Survey 2016, were used to estimate whether or not VMMC at the individual and community levels contributes to HIV disparities to any meaningful extent. Multilevel logistic regression models further explored the educational gradient in HIV infection for 2006-2007 and 2016 with regard to VMMC among SAM, while adjusting for household poverty, sexual practices and individual characteristics.

RESULTS

Among SAM with tertiary education, HIV prevalence declined from 25.0% in 2006-2007 to 10.5% in 2016. A 51% decrease in HIV prevalence was found to be associated with an increase in VMMC (adjusted odds ratio 0.49; 95% CI 0.40 to 0.60). Compared with SAM with tertiary education, those who had a lower level of education were more likely to have HIV infection and this education gradient effect had become particularly profound in 2016.

CONCLUSIONS

VMMC began to be promoted in 2008 in Eswatini and results suggest its effect, along with the education attainment effect, significantly resulted in a meaningful reduction in HIV prevalence among SAM by 2016.

The Impact of Parent-Adolescent Communication on Reduction of Sexual Risk Possibility Among Adolescents: Findings from the Suubi-Maka Study

Sexual risky behaviors among adolescents and young people remain a major public health problem worldwide. This study examined the impact of parent-adolescent communication on adolescents' possibility to engage in risky behaviors. The study used baseline data from the Suubi-Maka Study (2008-2012) implemented in 10 primary schools in Southern Uganda. Binary logistic regression models were conducted to determine the association between parent-adolescent communication and sexual risk possibility. Results indicate that gender [OR 0.220, 95% CI 0.107, 0.455], age [OR 1.891, 95% CI 1.030, 3.471], household size [OR 0.661, 95% CI 0.479, 0.913], and comfort level of family communication [OR 0.944, 95% CI 0.899, 0.990] were significantly associated with lower levels of sexual risk possibility among adolescents. There is a need to build interventions that make it easy and comfortable for adolescents to have open discussion and communication with parents on sexual risk possibility, risky behaviors, and risky situations.

Socioeconomic deprivation and survival outcomes in primary central nervous system lymphomas

Objective

To our knowledge, the impact of area-level socioeconomic status (SES) has not yet been described in primary central nervous system lymphomas (PCNSLs). Current study sought to explore the association of socioeconomic deprivation, measured using the Area Deprivation Index (ADI), with PCNSL outcomes.

Methods

The Surveillance, Epidemiology, and End Results (SEER) database was used to identify PCNSL patients diagnosed between 2006 and 2015 for our analyses. The impact of ADI on overall survival (OS) and cancer-specific survival (CSS) were investigated. Survival analyses were conducted using Kaplan-Meier method with log-rank tests. The Inverse Probability Weighting (IPW) analysis and multivariate cox proportional hazards regression analysis were employed to make covariate adjustments. Multiple mediation analysis (MMA) was performed to estimate the mediating effects.

Results

A total of 3159 PCNSL patients classified into low and high ADI subgroups according to the median ADI score were studied. The Kaplan-Meier analyses showed that low ADI was significantly associated with higher OS rates (HR 1.15, 95%CI 1.06-1.26, P<0.01) and CSS rates (HR 1.15, 95%CI 1.05-1.27, P<0.01). Similar results were observed in analyses adjusted via IPW and multivariate cox methods. Subgroup analyses revealed that ADI could remain a prognostic indictor among different subsets. MMA revealed that several factors including chemotherapy and HIV status making up about 40% of the overall effect, mediated PCNSL survival disparities related to the ADI. Finally, multivariable logistic regression analysis showed that ADI as well as several other factors were independently related to receipt of chemotherapy.

Conclusions

Our study highlights the role of area-level SES in prognosis of PCNSLs. And several factors including chemotherapy and HIV status of PCNSL patents contributed to the CSS disparities between ADI subgroups were uncovered by MMA. Such relationships would highlight the importance of policies development to enhance healthcare delivery and promote awareness of HIV prevention and treatment in low-resource neighborhoods.