Table 3.

Logistic Regression to Examine Factors Associated with Participation in Sexual Marathons in a Sample of HIV-Positive, Methamphetamine-Using MSM (N = 341)

						95% C.I.d
Variable	Ba	SEb	Wald	p	ORc	Lower	Upper
Use methamphetamine to “get pumped up” for sex	.76	.65	1.4	ns	2.1	.60	7.7
Use methamphetamine to meet sex partners	.16	.62	.07	ns	1.2	.35	3.9
Use methamphetamine to enhance sexual pleasure	.84	.61	1.9	ns	2.3	.70	7.6
Number of illicit drugs used in the past 2 months	−.11	.14	.60	ns	.90	.68	1.2
Used amyl nitrates (i.e., poppers) in the past 2 months	.34	.57	.42	ns	1.4	.50	3.9
Used sildenafil (Viagra®) in the past 2 months	1.8	.79	5.5	.01	6.3	1.3	29.3
Sexual compulsivity	.54	.34	2.6	ns	1.7	.89	3.3
Constant	−0.66	.73	.81	ns	.52	—	—

^aUnstandardized regression coefficient.

^bStandard Error.

^cOdds Ratio.

^dConfidence Interval.