Table 3.

GEE Logistic Regression Models: Condom Breakage/Slippage among Those Who Had Vaginal Sex with a Main Partner (4,839 partnerships) and Non-Main Partner (4,420 partnerships)

Predictors		MAIN PARTNERS								NON-MAIN PARTNERS
		Males (2,299 partnerships)				Females (2,540 partnerships)				Males (2,785 partnerships)				Females (1,635 partnerships)
		Odds Ratio	P*	[95% CI]		Odds Ratio	P*	[95% CI]		Odds Ratio	P*	[95% Cl]		Odds Ratio	P*	[95% Cl]
RESPONDENT
Education	<HS	1.35	0.0174	1.05	1.73	1.21	0.1080	0.96	1.54	1.36	0.0129	1.07	1.74	1.39	0.0287	1.04	1.88
	HS grad +	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Respondent had sex while high
	Ever	1.30	0.0287	1.03	1.64	1.50	0.0005	1.19	1.88	1.82	<0.0001	1.46	2.27	1.26	0.0925	0.96	1.66
	Never	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Respondent had STI symptoms prior 3 months
	Yes	1.12	0.4279	0.85	1.49	1.31	0.0210	1.04	1.64
	No or not known	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
PARTNER
Partner had STI prior 3 months
	Yes									2.42	0.0042	1.32	4.44	1.65	0.2203	0.74	3.66
	No or not known									Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Partner had STI symptoms prior 3 months
	Yes	1.36	0.0297	1.03	1.80	1.23	0.1838	0.90	1.68
	No or not known	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Perceived partner STI risk
	Very likely, likely, or unlikely									1.29	0.0424	1.01	1.64	1.63	0.0008	1.22	2.17
	Very unlikely									Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
PARTNERSHIP
How long partners knew each other before initiating sex
	Less than 1 month	1.27	0.0439	1.01	1.60	1.06	0.6419	0.84	1.33	1.26	0.0292	1.02	1.56	0.93	0.5908	0.71	1.21
	1 month or longer	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Discussed condoms with partner
	Ever	1.23	0.2116	0.89	1.71	1.42	0.0444	1.01	2.00
	Never or not known	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Discussed STI with partner
	Ever	1.17	0.1594	0.94	1.46	1.24	0.0378	1.01	1.53	1.35	0.0059	1.09	1.68	1.66	<0.0001	1.28	2.14
	Never or not known	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Number of protected vaginal sex acts		1.01	0.0288	1.00	1.01	1.01	<0.0001	1.01	1.02	1.03	0.0046	1.01	1.05	1.03	0.0934	1.00	1.06
Percent protected vaginal sex acts
	1%–99% condom use	1.05	0.6840	0.83	1.32	0.95	0.6025	0.76	1.17	1.21	0.0969	0.97	1.52	1.07	0.66	0.79	1.44
	100% condom use	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A
Length of sexual partnership
	1 month or longer									0.77	0.0221	0.62	0.96	0.91	0.4878	0.70	1.18
	< 1 month									Ref	N/A	N/A	N/A	Ref	N/A	N/A	N/A