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Table 6 Predictors of change in functioning from baseline: 6- and 12-month outcomes (N = 239 and 221)

From: Associations between personality disorder characteristics and treatment outcomes in people with co-occurring alcohol misuse and depression

  

Outcome: Change in Functioning (GAF) at 6-months

Outcome: Change in Functioning (GAF) at 12-months

Predictor

Simple correlation

∆R2

Standardized regression weight

Sig.

Simple correlation

∆R2

Standardized regression weight

Sig.

Step 1

  

.282

   

.289

  
 

Age

-.023

 

-.009

.877

-.063

 

-.042

.504

Gender (M = 1, F = 2)

-.046

 

-.003

.954

.015

 

.054

.370

Baseline alcohol use (OTI)

.008

 

.002

.971

-.058

 

-.051

.391

Baseline depression (BDI-II)

.151

 

.037

.549

.134

 

-.026

.672

Baseline functioning (GAF)

-.480

 

-.527

< .001

-.435

 

-.500

< .001

Baseline IPDEQ:

        

 Cluster A

-.036

 

-.088

.198

-.081

 

-.164

.020*

 Cluster B

-.048

 

-094

.163

-.022

 

-.044

.528

 Cluster C

-.092

 

-.115

.079

-.111

 

-.108

.005

 Overall scorea

-.080

 

-.231

< .001

-.092

 

-.244

< .001

Treatment condition (TC) contrasts:

        

 TC1: Brief vs. 10 sessions

-.052

 

-.069

.233

-.183

 

-.164

.007

 TC2: Integrated- vs. single-focused

-.019

 

.000

.996

.061

 

.016

.796

 TC3: Alcohol- vs. depression-focused

-.080

 

-.014

.811

.039

 

.100

.097

Step 2

  

.034

   

.023

  
 

Interactions between cluster scores and TC contrasts (m = 9)

        

 Cluster A x TC2

-.081

 

-.143

.047*

    

Interactions between IPDEQ overall score and TC contrasts (m = 3)a

        
  

(R2 = 0.316)

   

(R2 = 0.312)

  
  1. Note: IPDEQ, International Personality Disorder Examination Questionnaire. Change scores = follow-up phase minus baseline; *Trend (p < .05). aFrom a separate hierarchical regression including IPDEQ overall score (Step 1) and associated interactions (Step 2); only significant or trend level interactions are reported (m = number of interactions examined)