Table 2.

Twenty-Eight-Day Prospective Sexual Behaviors Among People Living with HIV Who Did Not and Who Did Engage in Undisclosed Condomless Sex with HIV-Negative/Unknown Status Partners

	Comparison group (n = 372)			Nondisclosure groupa(n = 166)
Sexual partners and behaviors		n	%		n	%	χ2
Exclusive male partners		268	72		102	61
Exclusive female partners		33	9		18	11
Male and female partners		71	19		46	27	5.0**
Regular sex partner		246	66		132	80	9.8**
Disclosed to at least one partner		160	87		5	8	n/a
Disclosed to all partners		126	43		12	7	65.3**

	Σ	M	SD	Σ	M	SD	t
Anal intercourse	405	1.1	2.5	567	3.4	3.5	8.6**
Vaginal intercourse	188	0.5	1.1	252	1.5	2.2	6.8**
Anal or vaginal intercourse	593	1.4	2.6	819	4.3	3.8	10.3**
Nonconcordant intercourse	162	0.4	1.3	541	3.2	3.4	13.5**
Undisclosed nonconcordant	—	—	—	494	2.9	3.2	n/a
Substance use before sex	210	1.2	2.5	313	1.8	2.9	2.1*

^aEngaged in undisclosed condomless nonconcordant sex.

^*p < 0.05; ^**p < 0.01.