Table 5.

Measurement models of unprotected sex in the past month

	Model 1 Unstandardized (standardized)	Model 2 Unstandardized (standardized)
Factor loadings
Number of episodes UIAI	1.00 (0.62)	1.00 (0.62)
Number of episodes URAI	1.11*** (0.61)	1.11*** (0.61)
Number of episodes performing unprotected oral	2.50*** (0.89)	2.50*** (0.89)
Confirmed HIV status	0.00 (−0.001)	–
Variances
Unprotected sex	1.51*** (1.00)	1.51** (1.00)
Residual variances
Number of episodes UIAI	2.48*** (0.62)	2.48*** (0.62)
Number of episodes URAI	3.22*** (0.63)	3.22*** (0.63)
Number of episodes performing unprotected oral	2.44** (0.21)	2.44** (0.21)
Confirmed HIV status	0.010*** (1.00)	–
R2
Number of episodes UIAI	0.38***	0.378***
Number of episodes URAI	0.37***	0.367***
Number of episodes performing unprotected oral	0.79***	0.794***
Confirmed HIV Status	0.000	–
Fit statistics
χ2 (df)	0.523 (2)	0.000*** (0)
CFI	1.00	1.00
RMSEA	0.000	0.000***

The model in boldface represents the most theoretically and statistically meaningful measurement model for unprotected sex in the past month; Model 1 includes all four indicators of drug use; Model 2 includes all but the confirmed HIV status indicator

^***p<0.001,

^**p<0.01,

^*p<0.05