. Author manuscript; available in PMC: 2016 Jul 1.

Published in final edited form as: Alcohol Clin Exp Res. 2015 May 22;39(7):1203–1211. doi: 10.1111/acer.12748

Table 2. Odds Ratios for Alcohol Class Predictions from Peer and Partner Alcohol Use.

Model	Predictor Variable	N	Odds Ratio (High vs. Zero Class)	Odds Ratio (Low vs. Zero Class)	Odds Ratio (High vs. Low Class)
Alcohol Volume
Univariate	Partner heavy drinking	184	11.99^*	1.71	7.03^M
	Peer drunkenness	197	7.33^**	1.41	5.21^***
Multivariate
	Partner heavy drinking	184	4.64^M	4.92^M	0.94
	Peer drunkenness		4.78^*	1.04	4.58^***
Heavy Episodic Drinking
Univariate	Partner heavy drinking	184	2.47^*	2.14^M	1.15
	Peer drunkenness	197	5.22^***	3.62^***	1.44
Multivariate
	Partner heavy drinking	184	1.57^M	1.26	1.25
	Peer drunkenness		5.10^***	3.13^***	1.63
Alcohol Problems
Univariate	Partner heavy drinking	184	3.75^*	2.52	1.49
	Peer drunkenness	197	15.15^**	2.85	5.31^***
Multivariate
	Partner heavy drinking	184	1.81	1.53	1.19
	Peer drunkenness		15.34^**	3.23	4.74^***

Note: “High/Low/Zero” Class labels denote “High increasing volume/Low decreasing volume/Alcohol abstainer” for Alcohol Volume; “High decreasing HED/Low HED/No HED” for Heavy Episodic Drinking; and “High chronic/Low chronic/No problems” for Alcohol Problems.

^***

p <.001.

^**

p <.01.

p <.05.

p <.10.