Table 2.

Characteristics MSM partnerships by participant serostatus in an online HIV prevention study, United States, 2010–2011

	HIV−	HIV+	Unknown	Total
	% (n)	% (n)	% (n)	% (n)
Partner type
Main	24 (1446)	17 (150)	23 (402)	23 (1998)
Casual, repeated	31 (1817)	36 (306)	30 (536)	31 (2659)
Casual, one time	45 (2668)	47 (403)	47 (830)	46 (3901)
Sex type
UAI	43 (2404)	56 (461)	44 (711)	44 (3576)
CAI	31 (1742)	25 (201)	28 (463)	30 (2406)
Oral only	27 (1500)	19 (155)	28 (454)	26 (2109)
How encountered
Online	52 (3058)	59 (508)	48 (839)	52 (4405)
Friend/Work/School	24 (1399)	12 (101)	30 (519)	24 (2019)
Other	24 (1440)	29 (245)	23 (399)	24 (2084)

HIV status based on participant self-report of HIV negative (HIV−), HIV positive (HIV+) or unknown (HIVu) serostatus.

UAI: unprotected anal intercourse; CAI: condom protected anal intercourse.