Table 3.

Multivariate GEE analyses for individual, interpersonal, and contextual factors independently correlated with crystal methamphetamine use among street-based FSWs (n = 255) over two-year follow-up.

Characteristics	Crystal methamphetamine use
	Adjusted odds ratios	95% Confidence intervals
Heroin injection^a	2.98	1.35–5.22
Youth (≤ 24 years of age)	1.80	0.90–3.63
Intimate partner who procures drugs^a	1.79	1.02–3.14
Worked in industrial areas^a	1.62	1.04–2.65
Cocaine injection	1.50	0.87–2.51
‘Absolute homelessness’ (lived on the street)^a	1.41	1.07–1.99
Crack cocaine smoking	0.67	0.40–1.15

Variables that retained significance at p < 0.05 in the multivariate GEE model.