. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: J Anxiety Disord. 2011 Mar 17;25(5):706–713. doi: 10.1016/j.janxdis.2011.03.007

Table 2.

Phi and Pearson Biserial Correlation Coefficients for all Dependent and Independent Variables

	1	2	3	4	5	6	7	8	9	10	11	12
1 Age	-	.06^b	−.12^b ^**	−.06^b	.42^b ^**	−.16^b ^**	−.13^b ^**	−.12^b ^**	−.14^b ^**	−.03^b	.07^b	−.09^b ^*
2 Sex	-	-	−.02^a	.01^a	−.05^b	−.14^b ^**	−.09^b ^*	−.12^b ^**	−.12^b ^**	−.14^a	.05^a	−.02^a
3 MDE Drug	-	-	-	.08^a ^*	−.04^b	.21^b ^**	.12^b ^**	.19^b ^**	.19^b ^**	.24^a ^**	.22^a ^**	.11^a ^**
4 Dependence	-	-	-	-	−.05^b	.07^b	.05^b	.06^b	.04^b	.02^a	.01^a	.07^a
5 Age at Trauma	-	-	-	-	-	−.19^b ^**	−.14^b ^**	−.16^b ^**	−.15^b ^**	−.01^b	.02^b	−.15^b ^**
6 Total Symptoms	-	-	-	-	-	-	.74^b ^**	.87^b ^**	.73^b ^**	.21^b ^**	.19^b ^**	.29^b ^**
7 Hyperarousal	-	-	-	-	-	-	-	.45^b ^**	.39^b ^**	.13^b ^**	.15^b ^**	.23^b ^**
8 Avoidance	-	-	-	-	-	-	-	-	.45^b ^**	.17^b ^**	.14^b ^**	.21^b ^**
9 Reexperiencing	-	-	-	-	-	-	-	-	-	.21^b ^**	.16^b ^**	.27^b ^**
10 Sleep Onset Sleep	-	-	-	-	-	-	-	-	-	-	.58^a ^**	.07^a
11 Maintenance	-	-	-	-	-	-	-	-	-	-	-	.05^a
12 Nightmares	-	-	-	-	-	-	-	-	-	-	-	-

Note: n = 722.

p < .05,

^**

p < .01;

phi correlations;

point biserials;

MDE = major depressive episode in the last 12 months; Drug Dependence = meeting criteria for substance dependence in the last 12 months; Total symptoms = total posttraumatic stress symptoms after removing sleep problem-specific item.