Table 5 Simulated powers for a nested exchangeable correlation structure with the number of clusters = 8, cluster size = 120, ICC = 0.1, and CAC = 0.8
| Â | \({\theta }_{1}={\text{log}}\left(1.35\right)\) | \({\theta }_{1}={\text{log}}\left(1.68\right)\) | ||||||
|---|---|---|---|---|---|---|---|---|
\({\theta }_{3}={\text{log}}\left(1.5\right)\) | \({\theta }_{3}={\text{log}}\left(2\right)\) | \({\theta }_{3}={\text{log}}\left(1.5\right)\) | \({\theta }_{3}={\text{log}}\left(2\right)\) | |||||
Prevalence rate of binary covariate | \(30\mathrm{\%}\) | \(50\mathrm{\%}\) | \(30\mathrm{\%}\) | \(50\mathrm{\%}\) | \(30\mathrm{\%}\) | \(50\mathrm{\%}\) | \(30\mathrm{\%}\) | \(50\mathrm{\%}\) |
 GEE | 0.829 | 0.871 | 0.999 | 1.000 | 0.836 | 0.879 | 0.999 | 1.000 |
 GEE-KC | 0.764 | 0.811 | 0.996 | 0.998 | 0.771 | 0.821 | 0.996 | 0.998 |
 GEE-MD | 0.691 | 0.743 | 0.988 | 0.994 | 0.699 | 0.753 | 0.989 | 0.995 |