Table 1.

Multivariate modeling of individual-, network-, and city-level variables associated with HCV seropositive status among PWID in eight Russian cities (N=2,457)

	Estimate	Standard Error	z value	Pr(>|z|)
(Intercept)	0.366	0.200	1.825	0.07
Positive HIV-1 serology	2.131	0.166	12.803	<0.0001
Years Injecting	0.038	0.010	4.047	<0.0001
Injected with used syringe	-0.383	0.159	-2.408	0.016
Shared non-syringe injection paraphernalia	0.333	0.107	3.127	0.002
Shared water for rinsing syringes	0.495	0.158	3.133	0.002
Social network size	0.005	0.002	2.717	0.007
Mean recruitment chain length	-0.003	0.002	-2.222	0.03
Stimulant use >10%	-0.402	0.110	-3.644	<0.001

Akaike Information Criterion=2,565