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. Author manuscript; available in PMC: 2021 May 1.
Published in final edited form as: Addict Behav. 2019 Dec 30;104:106283. doi: 10.1016/j.addbeh.2019.106283

Table 3.

Hierarchical Regression Results: Main Outcomes

Session 12 PTSD Symptom Severity
ΔR2 β SE sr2 p
Level 1 .55 < .001
Treatment Condition1 −.13 3.66 .03 .26
PTSD Symptom Severity (Baseline)2 .76 .14 .55 < .001
Number of SUD Diagnoses (Baseline)3 .04 2.27 .00 .75
Level 2 .11 .002
Mindfulness Total (Baseline)4 −.37 .12 .24 .002
Longest Sustained Abstinence from Primary Substance
ΔR2 β SE sr2 p
Level 1 .03 .72
Treatment Condition1 −.13 5.70 .02 .40
PTSD Symptom Severity (Baseline)2 −.02 0.22 .00 .90
Number of SUD Diagnoses (Baseline)3 .12 3.07 .01 .43
Level 2 .00 .95
Mindfulness Total (Baseline)4 .01 .19 .00 .95

Note.

1

Treatment condition = CBT for SUD (Cognitive Behavioral Therapy for Substance Use Disorders) or TIPSS (Treatment of Integrated Posttraumatic Stress and Substance Use);

2

Score based on Clinician Administered PTSD Scale for DSM-5 at treatment baseline;

3

Score based on Structured Clinical Interview for DSM-IV Axis I Disorders at treatment baseline;

4

Score based on Five Facet Mindfulness Questionnaire total score at baseline.