Table I.

Baseline Sample Characteristics by Intervention Group, N=562

	Prof/Peer	(N=302)	Prof Only	(N=260)	Chi-square or t-statistic	P
	N	%	N	%
Demographics
Age, mean (SD)	39.3	(8.6)	39.3	(8.4)	−0.07	0.94
Homeless in past 90 days, n %	164	54.3	144	55.4	0.07	0.79
Less than HS education, n %	162	53.6	130	50.0	0.74	0.39
Has a regular doctor/source of care, n %	177	58.6	145	55.8	0.46	0.49
Has health insurancea, n %	97	32.1	89	34.4	0.32	0.57
Substance Use
Days using alcohol, past 90, mean (SD)	43.8	(35.4)	46.5	(34.0)	−0.89	0.37
Days using crack, past 90, mean (SD)	44.2	(38.1)	47.4	(36.7)	−0.99	0.32
DSM substance dependence, n %	273	90.4	236	90.8	0.02	0.88
Prior treatment admissionsa, mean (SD)	2.2	(3.9)	2.1	(3.8)	0.33	0.74
Sexual behaviors
90 day paying partners, mean (SD)	20.6	(46.7)	17.2	(32.9)	0.98	0.33
Years in sex workb, mean (SD)	15.4	(9.2)	13.7	(9.2)	2.21	0.03
90 day unprotected vaginal sexc, n %	153	51.5	117	45.3	2.10	0.15
90 day unprotected oral sexd, n %	163	63.4	127	60.5	0.43	0.51
Health factors
Lifetime abuse history, n %	264	87.4	230	88.5	0.14	0.71
90 day violencea, n %	127	42.2	103	39.6	0.38	0.54
90 day mental health problemsa, n%	177	58.8	157	60.4	0.15	0.70
HIV-positivee, n %	50	16.6	52	20.2	1.26	0.26

Note:

^an=561;

^bn=560;

^cn=555 – 7 participants did not engage in vaginal sex;

^dn=467 – 95 participants did not engage in oral sex;

^en=559 – 3 participants had missing data.