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Table 6 Sensitivity analyses II: change in DASS between Time 1 and Time 2 for patients with and without major depression

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

With MDD (n = 6)

Intervention (n = 4)

Waitlist (n = 2)

  

Outcome

Time

Mean (SD)

Mean (SD)

p-value*

d**

DASS-D

1

11.00 (4.69)

8.00 (0)

.020

2.09

2

5.25 (2.87)

7.5 (0.71)

DASS-A

1

9.75 (2.36)

4.00 (1.41)

.050

1.19

2

6.25 (3.3)

4.00 (1.41)

DASS-S

1

11.75 (0.96)

7.50 (3.53)

.029

1.10

2

9.75 (0.50)

7.50 (3.53)

Without MDD (n = 12)

Intervention (n = 7)

Waitlist (n = 5)

  

Outcome

Time

Mean (SD)

Mean (SD)

p-value*

d**

DASS-D

1

9.57 (3.36)

12.2 (5.49)

.320

.26

2

6.71 (2.29)

10.6 (7.27)

DASS-A

1

9.14 (2.41)

9.80 (4.76)

.065

.84

2

5.86 (2.34)

9.40 (4.62)

DASS-S

1

10.00 (4.00)

8.80 (5.17)

.365

.38

 

2

8.29 (2.14)

8.40 (4.72)

  
  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.
  3. **Cohen’s d as computed by M TΔ - M CΔ S D pooled .
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BMC Psychiatry

ISSN: 1471-244X

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