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Table 3 Change in outcomes for Intervention group ( n= 11) from pretreatment to six-month follow-up

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

Outcome Time Mean (SD) p-value d**
DASS-D Pretreatment 10.09 (3.73)   
Posttreatment 7.64 (2.77) .001 .75
  1-month f-up 5.91 (3.27) .000 1.19
  6-month f-up 3.82 (2.12) .000 2.07
DASS-A Pretreatment 9.64 (2.01)   
Posttreatment 6.73 (2.90) .000 1.17
  1-month f-up 5.82 (3.16) .000 1.44
  6-month f-up 3.82 (3.03) .000 2.26
DASS-S Pretreatment 10.64 (3.26)   
Posttreatment 8.82 (1.83) .031 .69
  1-month f-up 6.91 (2.51) .000 1.28
  6-month f-up 5.45 (2.98) .001 1.66
PDQ-39 Pretreatment 36.03 (12.62)   
Posttreatment 32.82 (12.95) .096 .25
  1-month f-up 30.54 (11.99) .024 .45
  6-month f-up 32.05 (16.26) .259 .27
CCL-D Pretreatment 31.22 (15.50)   
Posttreatment 18.02 (15.94) .016 .84
  1-month f-up 16.78 (11.80) .000 1.05
  6-month f-up 18.83 (10.45) .002 .94
CCL-A Pretreatment 32.01 (10.51)   
Posttreatment 23.67 (11.27) .003 .77
  1-month f-up 20.08 (14.68) .000 .94
  6-month f-up 16.31 (11.08) .000 1.45
  1. **Cohen’s d as computed by M Time 1 - M TimeX S D pooled .