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Early age at first sex experience has been attributed to medical and psychological consequences, including practice of risk behaviors and HIV infection later in life. Studies have examined early heterosexual experience, but little is known about early anal sexual experience among men who have sex with men (MSM) in Africa. We conducted a time to event analysis to examine the extent and role of early anal sexual experience and HIV risk and infection in the largest MSM survey in Africa. A total of 753 MSM with a mean age of 26.5 years and that at first anal sexual experience of 18.3 years participated. Of those who participated, 29.0% (219/753) had their first anal sexual experience at age below 15. MSM reporting early anal sexual experience were young, had men as first sexual partner (adjusted hazard ratio-AHR, 4.75; 95%CI: 3.51-6.43), assumed receptive position during last anal sex (AHR, 3.25; 95%CI: 2.42-4.35), had anal sex as first penetrative sexual experience (AHR, 5.05, 95%CI; 3.68-6.97), had unprotected first anal sex (AHR, 1.55, 95%CI: 1.03-2.33), not preferring women for sex (AHR, 2.78; 95%CI: 2.11-3.67), had non-consensual first sex (AHR, 1.53, 95%CI: 1.10-9.41), and HIV positive (AHR, 1.75; 95%CI: 1.21-2.50). A third of MSM engaged in anal sex at an early age and were more likely to report sexual abuse, practice HIV risk behaviors, and been HIV seropositive. Roll-out of the existing Comprehensive Guideline for HIV Treatment and Care for key population in Tanzania should be implemented alongside measures addressing sexual abuse among young people. [ABSTRACT FROM AUTHOR]

Background: Scaling up of antiretroviral therapy (ART) is currently underway in sub-Saharan Africa including, Tanzania, increasing survival of people living with HIV/AIDS (PLWHA). Programmes pay little attention to PLWHA's reproductive health needs. Information on fertility desire and intention would assist in the integration of sexual and reproductive health in routine care and treatment clinics. Methods: A cross-sectional study of all PLWHA aged 15-49 residing in Kahe ward in rural Kilimanjaro Tanzania was conducted. Participants were recruited from the community and a local counselling centre located in the ward. Data on socio-demographic, medical and reproductive characteristics were collected through face-to-face interviews. Data were entered and analysed using STATA statistical software. Results: A total of 410 PLWHA with a mean age of 34.2 and constituting 264 (64.4%) females participated. Fifty-one per cent reported to be married/cohabiting, 73.9% lived with their partners and 60.5% were sexually active. The rate of unprotected sex was 69.0% with 12.5% of women reporting to be pregnant at the time of the survey. Further biological children were desired by 37.1% of the participants and lifetime fertility intention was 2.4 children. Increased fertility desire was associated with living and having sex with a partner, HIV disclosure, good perceived health status and CD4 count ⩾200 cells for both sexes. Reduced desire was associated with having-more than 2 children among females, divorce or separation, and having a child with the current partner among both males and females. Conclusion: Fertility desire and intention of PLWHA was substantially high though lower than that of the general population in Tanzania. Practice of unprotected sexual intercourse with higher pregnancy rate was observed. Fertility desire was determined by individual perceived health and socio-family related factors. With increasing ART coverage and subsequent improved quality of life of PLWHA, these findings underscore the importance of integrating reproductive health services in the routine care and treatment of HIV/AIDS worldwide. The results also highlight a group of PLWHA with potentially high desire for children who need to be targeted during care. [ABSTRACT FROM AUTHOR]

Objective: To compare the World Health Organization (WHO) body mass index (BMI)-for-age definition of obesity against measured body fatness in African children., Methods: In a prospective multicentre study over 2013 to 2017, we recruited 1516 participants aged 8 to 11 years old from urban areas of eight countries (Ghana, Kenya, Mauritius, Morocco, Namibia, Senegal, Tunisia and United Republic of Tanzania). We measured height and weight and calculated BMI-for-age using WHO standards. We measured body fatness using the deuterium dilution method and defined excessive body fat percentage as > 25% in boys and > 30% in girls. We calculated the sensitivity and specificity of BMI z-score > +2.00 standard deviations (SD) and used receiver operating characteristic analysis and the Youden index to determine the optimal BMI z-score cut-off for classifying excessive fatness., Findings: The prevalence of excessive fatness was over three times higher than BMI-for-age-defined obesity: 29.1% (95% CI: 26.8 to 31.4; 441 children) versus 8.8% (95% CI: 7.5 to 10.4; 134 children). The sensitivity of BMI z-score > +2.00 SD was low (29.7%, 95% CI: 25.5 to 34.2) and specificity was high (99.7%, 95% CI: 99.2 to 99.9). The receiver operating characteristic analysis found that a BMI z-score +0.58 SD would optimize sensitivity, and at this cut-off the area under the curve was 0.86, sensitivity 71.9% (95% CI: 67.4 to 76.0) and specificity 91.1% (95% CI: 89.2 to 92.7)., Conclusion: While BMI remains a practical tool for obesity surveillance, it underestimates excessive fatness and this should be considered when planning future African responses to the childhood obesity pandemic.