Researchers conducted this study to compare the prevalence of demographic characteristics and sexual behaviours across age groups and to estimate their significance in predicting sexual risk factors by age cohort.
This cohort study examined STI prevalence among 3047 heterosexual men. Participants completed a sexual risk factor questionnaire and were tested for chlamydia, gonorrhoea, syphilis and genital herpes. Researchers examined sexual risk in the study population through a composite measure of STI positivity by age cohort. Multivariable logistic regression models were used to generate AORs and 95% CIs.
Analysis revealed that STI positivity varied significantly by age group among heterosexual men by a number of covariates. In younger men, having more advanced education had a protective effect, whereas higher numbers of sexual partners elevated the risk for STIs. Middle-aged men who were black and divorced/separated/widowed had an increased risk for a positive STI test. Among older men, a younger age at first vaginal sexual encounter and a history of exchanging sex for money or drugs heightened STI risk.
The study concluded that that age-related life experiences among heterosexual men influence sexual risk and STI transmission.
Reference: https://srh.bmj.com/content/40/4/261
