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. Author manuscript; available in PMC: 2017 Jun 23.
Published in final edited form as: Mil Psychol. 2016 Jan 21;28(2):104–114. doi: 10.1037/mil0000100

Table 2.

Hierarchical Linear Regression Predicting PCL-S Total

Variable Model 1
Model 2
Model 3
t β sr2 t β sr2 t β sr2
BDI–II 4.938** .508 .26 4.762** .515 .25 2.698** .327 .07
Days spent usinga .196 .022 .01 .341 .037 .01
No. of SUD diagnosesb −.486 −.054 −.01 −.373 −.039 −.01
Past 30 day cravingc .535 .062 .01 −.117 −.013 −.01
DTS −2.921** −.356 −.08
Adj. R2 .248 .221 .300
F 24.38** 6.03** 7.08**

Note. SUD = substance use disorder; BDI–II = Beck Depression Inventory—II; DTS = Distress Tolerance Scale; PCL–S = PTSD Checklist; β = standardized beta; sr2 = squared semi-partial correlation.

a

Number of days spent using substances in the past month.

b

Number of SUD diagnoses.

c

Past 30 days assessment of craving.

**

p < .01.