Table II.

Multilevel model of longitudinal change in past 90 day outcomes (log-transformed) (N=559)
Column	1		2		3		4		5
Variable	Days of crack use		Days of alcohol use		Number of sex partners		Unprotected vaginal sex times		Days in self-help
	Estimate	S.E.	Estimate	S.E.	Estimate	S.E.	Estimate	S.E.	Estimate	S.E.
Fixed Effects:
Intercept	2.85†	.12	3.09†	.12	2.16†	.07	1.30†	.11	.36†	.09
Time	−.98†	.07	−.91†	.07	−.71†	.05	−.14	.08	.47†	.06
Group (ref. prof. only)	−.19	.14	−.18	.14	.10	.08	.17	.12	.08	.10
Group* Time	.11	.08	.12	.08	−.04	.05	−.06	.08	−.09	.06
Age	.10†	.01	.01	.01	−.01**	.00	.01	.01	.00	.01
Age* Time	−.03†	.00	−.01	.00	.01*	.00	−.02†	.01	.00	.00
HIV status (ref.neg)	.18	.19	−.39**	.18	.01	.10	−.30	.16	.12	.14
HIVstatus* Time	−.25*	.10	−.05	.10	−.14*	.07	−.25*	.11	−.02	.08
Homeless (ref. homeless)	−.28	.14	.11	.14	−.21**	.08	−.04	.13	−.05	.11
Homeless* Time	.12	.08	.06	.08	.08	.05	.14	.09	−.20**	.06
Random Variance:
Intercept	1.49†	.13	1.24†	.11	.28†	.03	.65†	.08	.68†	.06
Residual	1.51†	.07	1.51†	.07	.65†	.03	1.74†	.08	.98†	.04

Multilevel model of longitudinal change in dichotomous past 90 day outcomes (N=559)
Column	1		2		3
Variable	HIV Testinga		HIV Careb		Regular Source of Medical Care
	OR	S.E.	OR	S.E.	OR	S.E
Fixed Effects:
Intercept	.78	.14	1.25	.81	.47**	.13
Time	1.49*	.25	2.61	1.86	3.37†	.85
Group (ref. prof. only)	.89	.19	2.57	1.77	1.42	.47
Group* time	1.10	.21	.83	.52	1.07	.27
Age	.99	.01	1.01	.05	1.00	.02
Age* Time	.97**	.01	1.04	.05	.99	.02
HIV status (ref.neg)					23.02†	13.34
HIV status* Time					1.91	.99
Homeless (ref. homeless)	.61*	.14	5.79*	4.19	5.88†	2.09
Homeless* Time	1.14	.22	.95	.62	.57*	.15
Random Variance:
Intercept	.95	.18	1.54	.56	2.43*	.27
Linear slope (Time)	.75	.23	1.12	.74	1.16	.32

Note. SE=standard error;

All parameter entries are restricted maximum likelihood estimates fitted using Stata/SE12.1 xtmixed

^*p=<.05;

^**p<.01;

^†p<.001

All parameter entries are restricted maximum likelihood estimates fitted using Stata/SE12.1 xtmelogit

^*p=<.05;

^**p<.01;

^†p<.001;

^aOnly HIV negative participants at baseline were included in this analysis.

^bOnly HIV positive participants at baseline were included in this analysis.