4.1. Analysis.

Comparison 4 Curriculum to prevent pregnancy, HIV, and STI versus standard sex education, Outcome 1 Effective protection against pregnancy.

Effective protection against pregnancy
Study	Outcome	Assessment	N	Reported adjusted OR ± SE	Reported P
Coyle 2001	Use of effective protection against pregnancy at last sex (condom, OCs, or both)	After 9th‐grade lessons (7 months after baseline)	998	1.62 ± 0.22	0.03
Coyle 2001	_	After 10th‐grade lessons (19 months after baseline)	_	1.40 (no SE reported)	0.38
Coyle 2001	_	12 months after year 2 (31 months after baseline)	549	1.76 ± 0.29	0.05