ICC
|
Analytical power based on HH
|
Simulation-based calculations
|
---|
|
K=20,J=6
|
K=20,J=6
|
---|
Continuous outcomea
|
0
|
9
|
9
|
0.1
|
13
|
13
|
0.2
|
14
|
13
|
0.3
|
14
|
14
|
0.4
|
14
|
14
|
0.5
|
14
|
14
|
Binary outcomeb
|
0
|
11
|
15
|
0.1
|
17
|
16
|
0.2
|
18
|
17
|
0.3
|
18
|
18
|
0.4
|
18
|
18
|
0.5
|
18
|
18
|
Count outcomec
|
0
|
8
|
8
|
0.1
|
13
|
12
|
0.2
|
13
|
12
|
0.3
|
13
|
12
|
0.4
|
13
|
11
|
0.5
|
13
|
11
|
- aIntervention effect = −0.3785; σ
e
=1.55.
- bBaseline outcome probability = 0.26; OR = 0.56.
- cBaseline outcome rate = 1.5; RR = 0.8.
- Notation: K= number of subjects per cluster; J= total number of time points, including one baseline