Table 3.

Exponential random graph model (ERGM) for the two-mode venue patronage network: Chicago, IL; June 2013–July 2014

	Model 1			Model 2
Parameters	ML Est.	Std. Error	t-ratio	ML Est.	Std. Error	t-ratio
Purely structural effects
Edge	−1.95	0.04	0.04*	−2.08	0.07	−0.07
YBMSM attributes
Age (21 and over)	0.25	0.12	0.01*	0.06	0.07	−0.05
HIV positive	−0.13	0.15	0.01	0.03	0.08	−0.03
Condomless Sex	0.25	0.13	0.01	−0.43	0.07	−0.09*
Sex-drug Use	−0.04	0.15	0.01	−0.48	0.08	−0.03*
Group Sex	0.04	0.16	0.06	−0.20	0.10	−0.05
Condomless Sex (homophily)				0.01	0.00	−0.04*
Sex-drug Use (homophily)				0.01	0.00	0.02*
Group Sex (homophily)				0.02	0.00	−0.04*