“…Activities could operationalize more than one theoretical construct, so we counted the activity minutes for all Intentions High intentions to have sex, associated with increased ever had sex [77,78] Environmental conditions Sexual possibility situations New partner in the last month, associated with higher STD incidence [39] More time spent with steady boyfriend, associated with more unprotected sex [40] Longer relationship, associated with more unprotected sex [40] Shorter relationship (\1 yr), associated with higher STD incidence [42] More time spent with member of opposite sex, associated with earlier age at first sex [41] Parental connectedness Higher connectedness to mother, associated with decreased ever had sex [52][53][54][55], and less unprotected sex [52,55] Perceived family support, associated with decreased ever had sex [46], fewer sexual partners [46], and less unprotected sex [46,56,57] Child reports higher family conflict, associated with increased ever had sex [58], earlier age at first sex [58,59], more unprotected sex [58], and more sexual partners [58] Parental involvement Time spent in shared activities with mother, associated with decreased ever had sex [49,58], later age at first sex [58], fewer sexual partners [58], and less unprotected sex [58] Time spent with parents, associated with later age at first sex [47,62], less unprotected sex [47], and fewer sexual partners [47] Time spent with father, associated with later age at first sex [49] Participation in family decision making, associated with later age at first sex [49] Parent communication More communicatio...…”