Table 2.

Baseline sexual risk behaviors among young non-injecting heroin users and associations with injection drug use during follow-up

Past six months:	Males					Females
	N	%	AORa	95%	Conf. Int.	N	%	AORa	95%	Conf. Int.
Any unprotected sexb	330	73%	1.38	0.76	2.49	199	73%	1.34	0.54	3.3
Unprotected sexb with main partner	331	65%	1.43	0.81	2.53	199	66%	1.38	0.59	3.23
Unprotected sexb with other partner	333	23%	1.91	0.99	3.67	201	19%	2.07	0.85	5.03
Any anal sex	333	38%	1.65	0.96	2.84	195	29%	0.90	0.39	2.09
Unprotected anal sex	331	33%	1.67	0.96	2.91	196	27%	1.04	0.45	2.38
Traded sex for money, drugs, other	346	10%	3.66	1.50	8.96	202	20%	2.35	0.74	7.44
Traded sex, unprotected	335	5%	6.68	2.04	21.87	185	8%	0.79	0.16	3.97
Bought sex	348	8%	2.00	0.83	4.80	205	6%	1.39	0.32	6.00
Current IDU sex partner	343	3%	16.01	3.25	78.87	204	5%	1.26	0.39	4.07
Ever IDU sex partner	344	5%	4.05	1.24	13.28	204	8%	2.68	0.91	7.91
More than 1 sex partner	338	41%	1.45	0.84	2.48	203	39%	0.92	0.44	1.93
MSM anal sex	352	3%	0.14	0.02	0.92	Not applicable

^aodds ratio for injection drug use during follow-up, adjusted for age, race, education, cohabitation, homelessness, and prior injection drug use

^bvaginal or anal intercourse