Table 2.

Regression models for gender, week, ASI, PSS-I, and ASI×PSS-I on percent days drinking

Outcome	Predictor	R2	Adj R2	R2 Chg.	B	SE	β
Percent Days Drinking	Gender	.20	.17	.01	1.27	5.92	.02
	Week			.15	−.71	.21	−.29**
	PSS-I total score			.03	.57	.29	.19*
	ASI			.01	.16	.21	.07
	ASI × PSS-I total score			.02	−.03	.02	−.15†
	Gender	.20	.17	.01	.87	5.92	.01
	Week			.15	−.73	.21	−.30*
	PSS-I Re-experiencing			.03	1.05	.58	.17†
	ASI			.01	.19	.20	.08
	ASI × PSS-I Re-experiencing			.02	−.06	.03	−.15†
	Gender	.22	.18	.01	3.09	5.95	.04
	Week			.15	−.72	.21	−.30**
	PSS-I Avoidance			.04	2.38	.96	.23*
	ASI			.01	.11	.20	.05
	ASI × PSS-I Avoidance			.03	−.11	.05	−.17*
	Gender	.19	.15	.01	.54	5.99	.01
	Week			.15	−.79	.21	−.32*
	PSS-I Hyperarousal			.03	1.26	.72	.16†
	ASI			.01	.18	.20	.08
	ASI × PSS-I Hyperarousal			.01	−.03	.04	−.06

Note. ASI = Anxiety Sensitivity Index; PSS-I = Posttraumatic Symptom Scale – Interview;

^†p < .10,

^*p < .05,

^**p < .01