Table 3.

Individual and Situational Factors as Predictors of Change in the Context of the PFI: The Improved Group's (n = 186) Odds Ratios Compared to the Non-improved Group (n = 162)

	Unadjusted OR			Adjusted ORa			Adjusted ORb
	Logit	OR	95% CI	Logit	OR	95% CI	Logit	OR	95% CI
BMI (1; 0 = WF)	0.08	1.09	0.71 – 1.66	0.11	1.12	0.70 – 1.78	0.11	1.11	0.68 – 1.82
HED at baseline	−1.36**	0.26**	0.18 – 0.37	−1.36**	0.26**	0.17 – 0.38	−1.27**	0.28**	0.19 – 0.43
AP at baseline	−0.49**	0.61**	0.46 – 0.82	0.00	1.00	0.71 – 1.41	−0.24	0.79	0.53 – 1.17
Incident seriousness (1; 0 = non-serious)	0.87**	2.39**	1.32 – 4.34	1.04**	2.83**	1.46 – 5.47	0.72*	2.05*	1.02 – 4.12
Readiness to change	0.24	1.27	0.92 – 1.75	0.48*	1.62*	1.11 – 2.36	0.36	1.44	0.96 – 2.16
Positive alcohol expectancies	−0.61**	0.55**	0.35 – 0.84	−0.12	0.89	0.54 – 1.46	0.12	1.13	0.66 – 1.93
Female (1; 0 = male)	0.67**	1.95**	1.26 – 3.03	0.61*	1.85*	1.14 – 3.01	0.62*	1.86*	1.10 – 3.13
First-year student (1; 0 = other)	−0.61**	0.54**	0.35 – 0.84	−0.51*	0.60*	0.37 – 0.98	−0.49	0.62	0.37 – 1.03
Other drug use (1; 0 = no use)	−0.72**	0.49**	0.31 – 0.76	−0.54*	0.59*	0.36 – 0.95	−0.37	0.69	0.41 – 1.15

Note.

^aAdjusted for heavy episodic drinking (HED) and alcohol-related problems (AP) at baseline

^bAdjusted odds ratios from the model that included all variables at the same time

Logit (Log Odds Ratio) = Coefficient from logistic regression; OR = Odds Ratio; 95% CI = 95% Confidence Interval.

^*p < .05

^**p < .01.