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

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2011 Feb 22;50(4):364–375. doi: 10.1016/j.jaac.2011.01.004

TABLE 4.

Results of Logistic Regression Examining Wave 1 Posttraumatic Stress Disorder (PTSD) Classes Predicting Wave 2 Functional Impairment

DV: Wave 2 Functional Impairment (0 = no Functional Impairment; 1 = Functional Impairment)	β	SE	p	df	OR	95% CI
Step 1
Gender^a	−0.97	0.25	<.001	1	0.38	0.23–0.62
Wave 1 functional impairment^b	1.76	0.23	<.001	1	5.81	3.69–9.14
Step 2
Gender^a	−0.93	0.25	<.001	1	0.39	0.24–0.64
Wave 1 functional impairment^b	1.03	0.32	<.01	1	2.79	1.49–5.25
Wave 1 Class 2^c	−0.92	0.35	<.01	1	0.40	0.20–0.80
Wave 1 Class 3^c	−1.42	0.44	<.01	1	0.24	0.10–0.57

Note: Class 2: intermediate disturbance; Class 3: no disturbance. β = standardized beta; CI = confidence interval for odds ratio; df = degrees of freedom; OR = odds ratio; SE = standard error.

Female is the reference category.

Wave 1 FI endorsement is the reference category.

Class 1 (pervasive disturbance) is the reference category.