. Author manuscript; available in PMC: 2010 Aug 1.

Published in final edited form as: Am J Obstet Gynecol. 2009 Aug;201(2):146.e1–146.e6. doi: 10.1016/j.ajog.2009.05.015

Table 3.

Sex at risk for pregnancy, pregnancy and STI diagnoses during the study.

	6 month visit^a			12 month visit^a
Outcome	No. Analyzed	Yes	%	No. Analyzed	Yes	%

Sex at Risk for Pregnancy	699	226	32	637	208	33
Pregnancy	717	36	5	672	34	5
STI^b	714	13	2	692	40	6

STI, sexually transmitted infection

For sex at risk for pregnancy outcome, 6-month and 12-month refer to the first and second follow-up visit whenever they occurred; number analyzed refers to the number of women who appeared at that follow-up visit. For pregnancy and STI outcomes, all outcomes occurring in the 180 days post-enrollment are included in the 6-month, and between 181-365 days post-enrollment in the 12-month category. The total number analyzed reflects women contributing a minimum of 1 day of analysis (6 month) or 181 days of follow-up (12 month).

Laboratory-confirmed positive test results for chlamydial infection, gonorrhea or trichomoniasis after enrollment.