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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Psychol Trauma. 2019 Jul 25;12(3):260–271. doi: 10.1037/tra0000496

Table 2.

Veteran Comorbidities by CPT/PE Initiation and Timing

Early EBP n=19,755 Delayed EBP n=40,879 No EBP n=204,932

n % n % n % pc Significant Pair-wise Comparisonsd

Bipolar Disorder 2,048 10.4% 7,202 17.6% 25,414 12.4% <0.001 E vs. D
D vs. N
E vs. N
Depressive Disorder 12,605 63.8% 30,947 75.7% 126,028 61.5% <0.001 E vs. D
D vs. N
E vs. N
Other Psychotic Spectrum Disorder 406 2.1% 1,613 4.0% 5,975 2.9% <0.001 E vs. D
D vs. N
E vs. N
Pain Disorder 14,708 74.5% 34,473 84.3% 149,570 73.0% <0.001 E vs. D
D vs. N
E vs. N
Schizophrenia 148 0.8% 581 1.4% 3,062 1.5% <0.001 E vs. D
E vs. N
Any Substance Use Disorderd 6,018 30.5% 17,992 44.0% 67,021 32.7% <0.001 E vs. D
D vs. N
E vs. N
 Alcohol Abuse 4,065 20.6% 12,690 31.0% 43,126 21.0% <0.001 E vs. D
D vs. N
 Alcohol Dependence 3,133 15.9% 10,456 25.6% 31,596 15.4% <0.001 E vs. D
D vs. N
 Drug abuse 2,246 11.4% 8,688 21.3% 26,631 13.0% <0.001 E vs. D
D vs. N
E vs. N
 Drug Dependence 1,799 9.1% 7,311 17.9% 21,264 10.4% <0.001 E vs. D
D vs. N
E vs. N
Suicidal Ideation or Attempt 2,269 11.5% 7,813 19.1% 21,367 10.4% <0.001 E vs. D
D vs. N
E vs. N
Traumatic Brain Injury 3,519 17.8% 8,536 20.9% 28,519 13.9% <0.001 E vs. D
D vs. N
E vs. N
Categorical Number of Comorbidities <0.001 E vs. D
D vs. N
 0 Comorbidities 1,745 8.8% 1,402 3.4% 18,511 9.0%
 1 Comorbidity 4,909 24.9% 6,170 15.1% 51,347 25.1%
 2+ Comorbidities 13,101 66.3% 33,307 81.5% 135,074 65.9%

M SD M SD M SD pb Significant Pair-wise Comparisonsc

Continuous Number of Comorbidities 2.4 1.8 3.2 2.1 2.4 1.8 <0.001 E vs. D
D vs. N

Note. CPT, cognitive processing therapy; PE, prolonged exposure therapy.

a

For categorical variables, p values are based on Chi-Square. For number of comorbidities, (continuous variable), p value is based on the Kruskal Wallis test.

b

Pair-wise comparisons used Chi-Square for categorical variables and Mann-Whitney test for continuous variables. To correct for multiple statistical tests, statistical significance level was set to p < 0.0003 (i.e., p < 0.001/3)

c

Any substance use disorder refers to the presence of any alcohol/drug abuse and/or dependence.