Table 1

Search grid with identified PICO concepts

PICO concepts
ParticipantsYouth aged from 15 to 24 years, or the mean age of participants falls in the age range of 15–24 years
InterventionHIV prevention intervention programme aimed at reducing risky sexual behaviour, including structural, behavioural and combined
ComparatorsControl groups who received no intervention or alternative usual interventions, or waitlist controls.
OutcomesRisky sexual behaviours: (1) having first sexual activity at or before the age of 15 (early sexual debut), (2) engaging in sexual activity without a condom, (3) inconsistent condom use, (4) having multiple sex partners, (5) intergenerational sex, (6) transactional sex, (7) forced sex, (8) early marriages, (9) having partners who are at risk of HIV infection sich as using injectable drugs and (10) having been pregnant or fathered a child at a younger age (18 years or younger).
  • PICO, Population, Intervention, Comparator and Outcome.