. 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 3.

Children’s Yale-Brown Obsessive Compulsive Scale (CY-BOCS) in Youth with OCD with and without PTSD

	No PTSD^*	PTSD^*	Test statistic	p-value
	N=201(%)	N=10(%)	Test statistic	p-value
Obsessions
Time Spent	2.3 ± 0.8	2.7 ± 0.9	z=−1.32	0.19

Interference	2.2 ± 0.8	3.0 ± 0.5	z=−*3.15*	*0.002*

Distress	2.4± 0.8	3.0 ± 0.5	z=−*2.41*	*0.02*

Resistance	2.0 ± 0.9	2.6 ± 0.9	z=−1.84	0.07

Control	2.4 ± 0.8	2.9 ± 0.6	z=−1.95	0.051

Subtotal	11.2 ± 3.1	13.7 ± 2.4	z=−*2.63*	*0.008*

Compulsions
Time Spent	1.9 ± 0.7	2.1 ± 0.6	z=−0.75	0.45

Interference	1.9 ± 0.8	2.4 ± 1.0	z=−1.82	0.07

Distress	1.9 ± 0.8	2.4 ± 0.9	z=−*1.96*	*0.0498*

Resistance	2.1 ± 0.9	2.4 ± 0.7	z=−1.47	0.14

Control	2.3 ± 0.8	2.8 ± 0.4	z=−*1.99*	*0.046*

Subtotal	10.0 ± 3.1	11.8 ± 2.9	z=−1.69	0.09

CYBOCS Total	21.3 ± 5.7	25.5 ± 5.2	z=−*2.21*	*0.03*
Four Factor Symptom Dimension³⁴^*				Fisher’s exact p value
Factor 1	175 (92)	8 (89)		0.56
Factor 2	143 (75)	7 (78)		1.00
Factor 3	133 (70)	7 (78)		0.73
Factor 4	63 (33)	2 (22)		0.72

Four Factor Structure of Symptom Dimensions34

Factor 1 AGGRESSIVE/SEXUAL/RELIGIOUS/SOMATIC/CHECKING

Factor 2 SYMMERY/ORDERING/COUNTING/REPEATING

Factor 3 CONTAMINATION/CLEANING

Factor 4 HOARDING