. Author manuscript; available in PMC: 2015 Mar 4.

Published in final edited form as: Arch Pediatr Adolesc Med. 2010 Feb;164(2):152–159. doi: 10.1001/archpediatrics.2009.267

Table 3.

Estimates of Intervention Effect Size (Risk Ratios) and 95% Confidence Intervals for Self-Reported Sexual Behavior Outcomes.

		Intervention Condition
	N	12-hour comprehensive	8-hour comprehensive	Safer Sex Only	Abstinence Only
Ever had sexual intercourse	457	0.87 (0.64, 1.19)	0.86 (0.63, 1.17)	0.95 (0.72, 1.27)	0.67 (0.48, 0.96)
Sexual intercourse in past 3 months	657	0.95 (0.90, 1.00)	0.98 (0.93, 1.03)	1.00 (0.95, 1.05)	0.94 (0.90, 0.99)
Multiple sexual partners in past 3 months	655	0.95 (0.91, 0.99)	0.96 (0.92, 1.00)	0.99 (0.95, 1.04)	0.97 (0.93, 1.01)
Unprotected sexual intercourse in past 3 months	655	0.98 (0.95, 1.02)	0.99 (0.95, 1.02)	0.97 (0.94, 1.01)	0.98 (0.95, 1.01)
Consistent condom use in past 3 months	292	0.98 (0.82, 1.18)	1.08 (0.92, 1.27)	1.09 (0.94, 1.27)	1.03 (0.88, 1.21)

Note: The effect size estimate is the risk ratio (intervention coded “1” versus health control coded “0”) for each HIV/STI intervention condition. The risk ratios on ever had sexual intercourse was adjusted for intervention-maintenance condition, gender, and age at the 24-month follow-up. The risk ratios on consistent condom use were adjusted for time, intervention-maintenance condition, gender, and age over the entire follow-up period. All other risk ratios were adjusted for baseline measure of the criterion, time, intervention-maintenance condition, gender, and age over the entire follow-up period. N is the number of participants included in the analysis.