Table 2. Data extraction plan.

Category	Variables
Details of the retrieved articles	Title, author and year of publication
Study details	Year the study was conducted, country the study was conducted, study design
Characteristics of study participants	Age, sex and sample size for intervention and control arms for both baseline and postintervention
Intervention characteristics	Name of intervention, setting where the intervention was carried out (community or hospital-based), type of intervention delivery, delivery period/follow-up duration, type of allocation (individual or cluster), type of comparison
Outcome measures	Knowledge of HIV prevention, condom use, risk sexual behaviours, number of sexual partners, HIV testing and counselling, uptake of PrEP, screening and treatment of STIs
Reported effect size measures	Relative risks or risk ratios (RRs), ORs (for dichotomous outcomes) and weighted mean differences or standardised mean differences (for continuous outcomes)

ORodds ratioPrEPpre-exposure prophylaxisRRrelative riskSTIsexually transimitted infection