Effectiveness of Couple-Based HIV Counseling and Testing for Women Substance Users and Their Primary Male Partners: A Randomized Trial

Table 4

Baseline characteristics of participants lost to follow-up compared to those retained.

	3-month followup (𝑛=660)			9-month followup (𝑛=660)
	Lost (𝑛=160)	Retained (𝑛=500)	P value	Lost (𝑛=210)	Retained (𝑛=450)	P value
	%	%		%	%
Participant characteristics
Race/ethnicity			<.001			.10
African American	23.8	38.8		30.0	37.6
Hispanic	67.5	50.2		60.5	51.6
White/other	8.8	11.0		9.5	10.9
Unemployed	76.9	72.0	.26	73.3	73.1	1.00
Completed high school	49.4	52.4	.53	51.0	52.0	.80
Homeless^a	27.0	29.8	.55	30.0	28.7	.78
Ever diagnosed with STI^b	40.7	46.0	.26	47.1	43.6	.43
Ever being injected with illicit drugs	56.3	50.0	.17	53.3	50.7	.56
Age (yrs)^†	38.2	39.8	4.31, .04	38.2	39.9	5.94, .02
HIV transmission risk^†	2.03	1.61	0.57, .45	1.31	1.78	1.47, .22
Couple characteristics
Marital Status			.07			.37
Married, legal	18.1	26.6		23.8	24.9
Married, common law	70.6	65.0		64.8	67.1
Not married	11.3	8.4		11.4	8.0
Trying to conceive	10.6	8.0	.33	7.6	9.1	.56
Perceived closeness	75.0	75.2	1.00	73.8	75.8	.63
Condom use last 3 months	21.9	20.8	.82	23.8	19.8	.26
Anal sex last 3 months	33.8	28.4	.20	31.4	28.9	.52
HIV serodiscordant (𝑛=330)	7.3	6.6	.77	5.6	7.0	.79
Prob (%) male HIV positive^†	.18	.16	0.22, .64	.14	.17	0.58, .45
Relationship duration (yrs)^†	6.0	8.1	12.0, <.001	5.9	8.4	20.6, <.0001

†Mean given.
^‡Welch’s ANOVA F statistic.