Uptake of facility-based HIV testing among adolescents and young adults in Nigeria

In Nigeria, adolescents and young adults (AYA) who engage in multiple sexual partnerships, transactional sex, and needle-sharing are eligible for preexposure prophylaxis (PrEP) and are prioritized for HIV testing. AYA with PrEP-eligible behaviors should be using facility-based HIV testing services. We examined associations between these behaviors and facility-based HIV testing among AYA aged 14-24 years.

A longitudinal analysis of a stepped-wedge trial.

Using Innovative Tools to Expand Youth-friendly HIV Self-Testing (I-TEST) data, we fit generalized linear models using generalized estimating equations. We used a two-stage weighted approach to generalize I-TEST estimates to all AYA in Nigeria.

Of 1429 trial participants, the median age was 20 years (IQR: 18-22), 50.3% were female, and 69.4% reported secondary education as highest level of education completed. Recent facility-based HIV testing uptake was higher among AYA with one [unadjusted risk difference: 11.7%, 95% confidence interval (95% CI): 8.1-15.2], two [11% (5.3, 16.8)], and three or more sexual partners in the past 3 months [17.3% (10.5, 24)], compared to AYA with no recent sexual partners. AYA who engaged in transactional sex had higher facility-based testing uptake [14.7% (9.8, 19.5)] than AYA who never engaged in transactional sex. AYA who shared needles had lower facility-based testing uptake [-3.3% (-6.7, 0.2)] than AYA with no needle-sharing history. The trial and generalized estimates were in the same direction.

While facility-based testing may reach AYA who engaged in multiple sexual partnerships or transactional sex, AYA who shared needles may require more tailored HIV testing approaches.