Table 2.

Standardized coefficients predicting risky sexual behavior from substance use after controlling for covariates.

R2
		Condom use in the past 90 days	Used a condom at last sex	Sex while high in the past 90 days	Number of sexual partners
Covariates	within subjects	0.053	0.110	0.046	0.164
	between subjects	0.099	0.167	0.144	0.386

		β (SE) [change in R2]
		Condom use in the past 90 days	Used a condom at last sex	Sex while high in the past 90 days	Number of sexual partners
Alcohol	within subjects	−.115 (.009) [.011]	−.085 (.008) [.005]	.271 (.010) [.064]	.180 (.009) [.025]
	between subjects	−.388 (.031) [.145]	−.403 (.027) [.156]	.648 (.026) [.403]	.430 (.018) [.184]
Cocaine	within subjects	−.121 (.009) [.015]	−.068 (.009) [.004]	.460 (.065) [.036]	.092 (.010) [.010]
	between subjects	−.467 (.052) [.192]	−.401 (.051) [.140]	.669 (.054) [.187]	.232 (.042) [.046]
Being drunk or high	within subjects	−.134 (.009) [.016]	−.085 (.009) [.005]	.366 (.011) [.119]	.203 (.010) [.034]
	between subjects	−.447 (.031) [.184]	−.445 (.028) [.181]	.851 (.022) [.668]	.519 (.020) [.249]
Marijuana	within subjects	−.129 (.009) [.015]	−.099 (.009) [.009]	.337 (.011) [.098]	.221 (.010) [.042]
	between subjects	−.410 (.030) [.157]	−.416 (.027) [.159]	.791 (.023) [.585]	.489 (.019) [.222]

Note: All substance use variables are significantly related to all RSBs variables (p < .001). Control variables are age, gender, and neighborhood.