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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)