Table 1.

Demographic, drug use, and social network characteristics of 72 male clients of FSWs in Tijuana who report injection drug using relationships

	N	%
Ego characteristics
Age (mean, SD)	40.5	8.1
Hispanic/Latino	64	88.9
Lives in Mexico (vs. US)	54	75.0
Ever deported from the US	35	48.6
Married (vs. separated, divorced, widowed or single)	22	30.6
Employed	41	56.9
Heterosexual (vs. gay/bisexual)	65	90.3
Substance use (past 4 months)
Heroin	67	93.1
Meth	49	68.1
Cocaine	17	23.6
Crack	6	8.3
Alcohol	46	63.9
Biological test results
HIV (n = 70)	4	5.7
Lifetime Syphilis (n = 69)	7	10.1
Any STI (n = 70)	13	18.6

	Mean	SD	Range
Social network characteristics (proportion, out of 5 contacts)
% of alters who are female	35.0	25.3	0–100
% of alters in drug network	68.0	24.6	0–100
% of alters in sex network	1.3	5.1	0–20
% of alters in both drug and sex networks	30.3	23.7	0–100
% of alters who are sex workers	22.5	25.3	0–100
% of alters who live in Mexico	84.7	26.3	0–100
% of alters who are regular sex partners	4.2	8.2	0–20
% of alters who are casual sex partners	6.4	15.7	0–80
% of alters who are friends	66.4	31.6	0–100
% of alters who are acquaintances	19.4	27.1	0–100
% of alters who are family members	1.9	6.8	0–40
% of alters who ego sees daily	47.2	35.4	0–100
% of alters with whom ego drinks alcohol	29.4	33.6	0–100
Average closeness with alters	7.8	1.6	2.8–10