. Author manuscript; available in PMC: 2012 Apr 1.

Published in final edited form as: Community Ment Health J. 2010 Mar 25;47(2):143–155. doi: 10.1007/s10597-010-9302-8

Table 3.

The relationship of intervention group assignment and follow-up time to unprotected anal and vaginal sex

Parameter		Estimate	Standard error	95% confidence limits		Z	P
Intercept		2.2644	0.2998	1.6768	2.8519	7.55	<.0001
HIV group		−0.1019	0.4944	−1.0708	0.8670	−0.21	0.84
Baseline	0	0.0000	0.0000	0.0000	0.0000
3-month f/u	1	0.8679	0.5033	−0.1185	1.8542	1.72	0.08
6-month f/u	2	0.1082	0.3109	−0.5012	0.7176	0.35	0.74
HIV group*baseline	0	0.0000	0.0000	0.0000	0.0000
HIV group*3-month f/u	1	−0.7804	0.7534	−2.2571	0.6963	−1.04	0.30
HIV group*6-month f/u	2	0.1706	0.4686	−0.7478	1.0890	0.36	0.72

Analysis of general estimating equation parameters with a Poisson log link function. The reference group for “HIV group” is the control intervention, and the reference group for “time” is baseline