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

Published in final edited form as: J Anxiety Disord. 2010 Dec 27;25(4):513–519. doi: 10.1016/j.janxdis.2010.12.005

Table 2.

Prevalence of PTSD and Trauma in Youth with OCD and Controls

	Controls	OCD	Test Statistic	p-value
	N=151(%)	N=263(%)	Test Statistic	p-value
PTSD (Full)	0 (0)	6 (2)	OR=4.8 [0.7, ∞]	0.13
PTSD (Full or Subthreshold)	0 (0)	17 (6)^*	OR=14.6 [2.5, ∞]	<0.001^**
Trauma	1 (1)^***	28 (11)	OR=9.3 [1.2, 69.4]	0.03

OCD onset after PTSD = 5 (1 for full PTSD)

PTSD and OCD concurrent onset = 3 (1 for full PTSD)

PTSD onset after OCD = 9 (4 for full PTSD)

^**

OCD remained significantly associated with PTSD after controlling for comorbid disruptive behavior, mood, or tic disorders (all p<0.04)

^***

Denominator N=79