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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Soc Sci Med. 2011 May 1;72(11):1817–1825. doi: 10.1016/j.socscimed.2011.03.045

Table 1.

The associations between PTSD and key model variables among patients bothered by worry in the last month (n = 130).

Variable PTSD
(n = 94)		 No PTSD
(n = 36)		 χ2 (1) t(129)
Frequency of worry 2.5 (0.9) 1.6 (0.9) 4.6*
Difficulty stopping worry 2.4 (0.8) 0.8 (1.0) 8.3*
Worry-Induced Somatic Symptom Scale (W-SSS) 6.2 (3.2) 1.5 (2.8) 8.1*
Worry-induced panic attacks 82% (77/94) 17% (6/36) 49.5*
Worry-Induced Catastrophic Cognitions Scale (W-CCS) 2.3 (1.4) 0.5 (0.9) 7.3*
Worry-Induced Trauma Recall Scale (W-TRS) 2.0 (1.6) 0.1 (0.6) 8.1*
     Flashbacks during worry 47% (44/94) 3% (1/36) 31.4*
     Trauma recall during worry 72% (67/94) 8% (3/36) 42.4*
Irritability Scale 2.2 (1.2) 0.8 (1.1) 5.7*

Note.

*

= p < .001.

Chi square test for variables involving percentages; t test for all other variables. All severity scales are rated on a 0–4, Likert-type scale, except for W-SSS, which is given as the number of somatic symptoms (out of 10 possible) that were experienced during worry episodes. To be considered a flashback, the patient had to have at least a “2” on the flashback severity scale.