TABLE 1.

Study and sociodemographic characteristics of participants by interview mode, São Paulo, Brazil, 2004^‡

	ACASI§ (n = 409)	FTF§ (n = 409)
Study characteristics
% Randomized to home group for STI§ testing	50	50
% Randomized to clinic group for STI testing¶	50	50
Sociodemographic characteristics
Mean age (years)#	27.5	27.7
Mean years of schooling#	8.9	8.9
Mean no. of births	1.3	1.4
% Currently pregnant: self-reported	6	6
% Single¶	37†	33
% Married or living together	52	59†
% Separated, divorced, or widowed	11	9
Mean family income last month (real; 1 R$ ≈ $0.48 US)#	819	837
% Works for cash	51	72**
% Works as a domestic laborer	7	10†
% Owns her home	35	39
% Rents a house or apartment	32	32
% Lives with relative, employer, in a favela, others¶	67	71
% Has house with internal plumbing	84	89*
% Has house made of finished brick or cement	17**	10
Mean no. of household durables owned‡‡	4.5	4.7
% Self-identified skin color: white¶	39	41
% Self-identified skin color: black	15	14
% Self-identified skin color: mixed	42	40
% Self-identified skin color: indigenous	1	2
% Self-identified skin color: yellow	3	3

*p < 0.05; **p < 0.01: significance level across interview mode.

^†p < 0.10: significance level across interview mode.

^‡Sample sizes for particular variables vary marginally because of missing values.

^§ACASI, audio computer-assisted self-interviewing; FTF, face-to-face; STI, sexually transmitted infection.

^¶Group used as the reference category in multivariate analyses.

^#Captured in an FTF eligibility interview prior to enrollment survey.

^‡‡Includes television, videocassette recorder, refrigerator, washing machine, telephone, and car.