Table 3.

Weighted percentage of sexual risk behaviours and associations with viral suppression^a among adults with HIV diagnosis for at least 12 months and receiving medical care in the United States, Medical Monitoring Project, 2009.

	Totalb			MSM			MSW			WSM
	%	PR (95% CI)	P for modified Rao-Scott chi-square test	%	PR (95% CI)	P for modified Rao-Scott chi-square test	%	PR (95% CI)	P for modified Rao-Scott chi-square test	%	PR (95% CI)	P for modified Rao-Scott chi-square test
Vaginal/anal sex
Suppressed	53	0.88 (0.82–0.93)	<0.01	55	0.87 (0.80–0.96)	<0.01	54	0.93 (0.84–1.04)	0.21	48	0.81 (0.71–0.93)	<0.01
Not suppressed	60	Ref		63	Ref		58	Ref		59	Ref
Unprotected vaginal or anal sex
Suppressed	22	0.85 (0.73–0.98)	0.03	28	0.78 (0.66–0.93)	<0.01	14	1.00 (0.66–1.51)	0.99	21	0.85 (0.67–1.07)	0.16
Not suppressed	26	Ref		35	Ref		14	Ref		24	Ref
Unprotected vaginal or anal sex with a partner of negative or unknown HIV status
Suppressed	11	0.79 (0.64–0.99)	0.04	12	0.76 (0.60–0.97)	0.03	8	0.82 (0.44–1.53)	0.52	14	0.87 (0.63–1.20)	0.41
Not suppressed	14	Ref		15	Ref		10	Ref		16	Ref

CI, confidence interval; MSM, men who have sex with men; MSW, men who have sex with women; PR, prevalence ratio; WSM, women who have sex with men.

^aNote: viral suppression is defined as all viral load measurements in the 12 months before interview undetectable or <200 copies/ml.

^bExcludes persons who reported no sexual behaviour and did not report their sexual orientation as heterosexual, homosexual or bisexual. Includes transgender participants (n = 64) and women who have sex with women (n = 26) because sample sizes were too small to provide valid estimates for separate analysis.