. Author manuscript; available in PMC: 2013 Feb 1.

Published in final edited form as: AIDS Behav. 2012 Feb;16(2):432–440. doi: 10.1007/s10461-011-9889-y

Table 2.

Logistic regression results to predict IVR utilization

Baseline predictor^b	Callers vs. non-callers^a			Frequent vs. infrequent callers^a
	OR	95% CI	P	OR	95% CI	P
Age	0.494	0.229–1.066	0.072	1.390	0.767–2.519	ns
Years of HIV/AIDS medical care	2.907	1.067–7.921	0.037	0.940	0.515–1.717	ns
Self-efficacy for safe sex negotiation	2.145	1.012–4.546	0.046	0.800	0.396–1.616	ns
Lost social support (NSSQ^c)	1.020	0.451–2.309	ns	0.435	0.209–0.906	0.026
ZTPI^d present-hedonistic subscale	0.668	0.301–1.486	ns	0.558	0.288–1.079	0.083
Sexual orientation (heterosexual)	0.208	0.040–1.095	0.064	0.476	0.142–1.593	ns

Referent groups were non-callers or infrequent callers (on < 70% of IVR days).

Continuous predictor variables were z-transformed to allow direct comparisons among odds ratios (OR) adjusted to indicate a one standard deviation change in the predictor variable; dichotomous variables were not z-transformed; P-values are for the associated 95% confidence intervals (CI).

Norbeck social support questionnaire.

Zimbardo time perspective inventory