Skip to main content

Table 2 Change in outcomes between time 1 (pretreatment) and time 2 (posttreatment/post-waitlist)

From: A waitlist-controlled trial of group cognitive behavioural therapy for depression and anxiety in Parkinson’s disease

   Intervention (n = 11) Waitlist (n = 7)   
Outcome Time Mean (SD) Mean (SD) p-value* d**
DASS-D 1 10.09 (3.73) 10.71 (5.41) .011 1.12
2 7.64 (2.77) 11.00 (5.20)
DASS-A 1 9.64 (2.01) 8.57 (4.61) .025 .89
2 6.73 (2.90) 8.14 (4.85)
DASS-S 1 10.64 (3.26) 10.00 (4.28) .828 .08
2 8.82 (1.83) 8.43 (4.50)
PDQ-39 1 36.03 (12.62) 28.48 (16.15) .095 .56
2 32.82 (12.95) 32.88 (14.50)
CCL-D 1 31.22 (15.50) 24.49 (14.12) .009 1.26
2 18.02 (15.94) 28.83 (9.86)
CCL-A 1 32.01 (10.51) 29.46 (14.00) .009 .92
  2 23.67 (11.27) 33.04 (15.38)   
  1. DASS-D = DASS-Depression, DASS-A = DASS-Anxiety, DASS-S = DASS-Stress, PDQ-39 = Parkinson’s Disease Questionnaire-39, CCL-D = Cognitions Checklist-Depressive Cognitions, CCL-A = Cognitions Checklist-Anxious Cognitions.
  2. *p-value for Time x Condition interaction effect M - M S D pooled .
  3. **Cohen’s d as computed by.