“…The sample size ranged from the lowest (n=107) to the largest (n=19,289). The outcomes in this study were behaviors: sexual activity ( 11-16 ,20,26,35-38,42, 43 ), and contraceptive use ( 11 , 13-16 ,24,35-39,42, 43 ), examining the impact on STI/HIV ( 11 , 13 ,15,20,35,36,38, 43 ), knowledge and preventive behavior ( 11 , 17-19 ,21,22,24,26-28,34,35,38-40,43, 44 ), and self-efficacy ( 24 , 29 , 39 ). Most of the study outcomes involved follow-up more than twice, the first follow-up was immediately after the intervention ( 26 , 39 ), 3 months ( 12 , 13 , 26 , 35 , 36 ), 6 months ( 11 , 13 ,29,35,39,42, 43 ), 9 months ( 24 , 41 ), 12 months ( 17 , 24 , 37-39 ), 18 months ( 44 ), 24 months ( 26 , 36 , 42 ), even 7 years ( 15 ) after the intervention ended.…”