Table 4.

Logistic set regression: UAI at the most recent encounter (N = 413)

Model	−2 log L	Overall model	Change in −2 log L
Set 1: demographic and cultural set	400.28	X2(7) = 8.57
Set 2: psychological set	390.60	X2(9) = 18.26*	9.68*
Set 3: situational set	359.24	X2(14) = 49.62**	31.36**
Final model	Coefficient	Wald X2	Odds ratio	95% CI
Set 1: demographic and cultural characteristics
Intercept	−1.13	1.28
Education level	−0.15	.26	0.86	0.48–1.54
Income	0.14	2.04	1.15	0.95–1.39
Age	−0.00	0.01	1.00	0.97–1.03
HIV positive status	−0.01	0.00	0.99	0.48–2.05
Brazilian	0.01	0.00	1.01	0.50–2.03
Dominican	0.47	1.98	1.60	0.83–3.08
U.S. acculturation	−0.15	0.47	0.86	0.56–1.32
Set 2: psychological characteristics
Self-efficacy for condom use	−0.57	14.05**	0.57	0.42–0.76
Depression	0.03	0.02	1.03	0.67–1.59
Set 3: situational characteristics
Closeness with partner	0.31	6.17*	1.37	1.07–1.75
Concern about STIs	−0.62	4.30*	0.54	0.30–0.97
Drug use in encounter	0.55	2.77	1.74	0.91–3.33
Sexual desire in encounter	0.21	1.57	1.23	0.89–1.70
Seroconcordance	0.70	5.58*	2.02	1.13–3.63

^*P<.05;

^**P<.01