Table 3.

Multinomial logistic regression contrasting characteristics associated with type of last group sex event.

SECTION A. Referent outcome group:	Spontaneous Group Sex			Organized sex party
Threesome	AOR	p	95% CI	AOR	p	95% CI
HIV Positive
Yes	1.60	0.001	1.21 -- 2.11	1.94	<.001	1.38 -- 2.73
Cocaine, Meth, or Crack use during encounter
Yes	1.72	0.002	1.22 -- 2.42	0.88	0.62	0.53 -- 1.47
Race is Non-White
Yes	1.15	0.28	0.89 -- 1.47	1.078	0.63	0.80 -- 1.45
In a relationship at the time of the encounter
Yes	1.08	0.55	0.84 -- 1.39	0.62	0.006	0.45 -- 0.87
Five or more alcoholic drinks during the encounter
Yes	1.48	0.002	1.15 -- 1.90	1.03	0.83	0.75 -- 1.42
Receptive anal sex (bottoming) without a condom
Yes	1.30	0.05	1.003 -- 1.68	0.67	0.02	0.48 -- 0.95
MPSE was in the last yea r
Yes	1.19	0.24	0.89 -- 1.58	1.14	0.88	0.81 -- 1.59
SECTION B. Referent outcome group:	Spontaneous Group Sex
Organized sex party	AOR	p	95% CI
HIV Positive
Yes	0.82	0.33	0.56 -- 1.22
Cocaine, Meth, or Crack use during encounter
Yes	1.96	0.02	1.13 -- 3.39
Race is Non-White
Yes	1.06	0.77	0.75 -- 1.51
In a relationship at the time of the encounter
Yes	1.73	0.01	1.18 -- 2.55
Five or more alcoholic drinks during the encounter
Yes	1.43	0.05	1.001 -- 2.05
Receptive anal sex (bottoming) without a condom
Yes	1.92	0.001	1.31 -- 2.83
MPSE was in the last year
Yes	1.04	0.83	0.70 -- 1.56

All independent variables are coded "1 = yes" and "0 = no"

AOR: Adjusted Odds Ratio. Bold values indicate significance at p < .05