Table 5.

Comparison and Associated Risk Ratio among Categories of Sexual Risk Behaviors within Gender/Sexual Orientation

	Study interest			Reference type			GEE-Negative binomial
	Condom	Partner	Gender	Condom	Partner	Gender	IRR	95% CI		P-value
Main effects
	condom use		WSM	condomless		WSM	0.47	0.40	0.56	<.0001
	condom use		MSM	condomless		MSM	0.58	0.47	0.71	<.0001
	condom use		MSW	condomless		MSW	0.42	0.36	0.48	<.0001
		non-primary	WSM		primary	WSM	0.28	0.23	0.33	<.0001
		non-primary	MSM		primary	MSM	0.79	0.68	0.91	0.001
		non-primary	MSW		primary	MSW	0.32	0.28	0.37	<.0001
Interactions
	condom use	non-primary	WSM	condom use	primary	WSM	0.54	0.42	0.70	<.0001
	condom use	non-primary	WSM	condomless	non-primary	WSM	1.12	0.84	1.48	0.444
	condom use	non-primary	WSM	condomless	primary	WSM	0.19	0.15	0.25	<.0001
	condom use	primary	WSM	condomless	non-primary	WSM	2.07	1.62	2.65	<.0001
	condom use	primary	WSM	condomless	primary	WSM	0.36	0.30	0.43	<.0001
	condomless	non-primary	WSM	condomless	primary	WSM	0.17	0.14	0.21	<.0001
	condom use	non-primary	MSM	condom use	primary	MSM	0.87	0.69	1.09	0.224
	condom use	non-primary	MSM	condomless	non-primary	MSM	0.97	0.77	1.22	0.781
	condom use	non-primary	MSM	condomless	primary	MSM	0.53	0.42	0.66	<.0001
	condom use	primary	MSM	condomless	non-primary	MSM	1.12	0.82	1.52	0.475
	condom use	primary	MSM	condomless	primary	MSM	0.61	0.45	0.83	0.001
	condomless	non-primary	MSM	condomless	primary	MSM	0.55	0.46	0.66	<.0001
	condom use	non-primary	MSW	condom use	primary	MSW	0.42	0.34	0.51	<.0001
	condom use	non-primary	MSW	condomless	non-primary	MSW	0.60	0.48	0.76	<.0001
	condom use	non-primary	MSW	condomless	primary	MSW	0.17	0.14	0.19	<.0001
	condom use	primary	MSW	condomless	non-primary	MSW	1.45	1.13	1.87	0.004
	condom use	primary	MSW	condomless	primary	MSW	0.40	0.33	0.48	<.0001
	condomless	non-primary	MSW	condomless	primary	MSW	0.27	0.22	0.34	<.0001