What do systematic reviews say?

Incentive‐based programmes vs no intervention

Incentive‐based programmes may leads to lower pregnant at end of trial compared with no intervention (low certainty).

• School‐based interventions for preventing HIV, sexually transmitted infections, and pregnancy in adolescents 2016 · Cochrane Headline outcomes only
  RR 0.76 [0.58, 0.99]
  2 studies · 4200 participants
  Low