|
Continuous outcomes
|
PTSD Checklist
|
PHQ-9
|
AUDIT
|
MOS SF-PCS
|
|---|
|
Cluster size at baseline
|
40
|
40
|
40
|
40
|
|
Cluster size estimation at 12-month (25 % attrition)
|
30
|
30
|
30
|
30
|
|
Total number of clusters
|
24
|
24
|
24
|
24
|
|
Alpha
|
0.05
|
0.05
|
0.05
|
0.05
|
|
Power
|
0.8
|
0.8
|
0.8
|
0.8
|
|
ICC
|
0.02
|
0.0259
|
0.02
|
0.02
|
|
Baseline mean (SD)
|
50 (15)
|
14 (6)
|
10 (5)
|
50 (10)
|
|
Autocorrelation
|
0.7
|
0.7
|
0.7
|
0.7
|
|
Follow-up time points (including baseline)
|
4
|
4
|
4
|
4
|
|
Minimal detectable effect size
|
0.23
|
0.23
|
0.23
|
0.23
|
- PTSD posttraumatic stress disorder, PTSD Checklist Civilian Version [58], PHQ-9 Patient Health Questionnaire [82], AUDIT Alcohol Use Disorders Identification Test [85], MOS SF PCS Medical Outcomes Study Short Form Physical Components Summary Score [126], ICC intraclass correlation, SD standard deviation
