Table 2 Methods used to account for clustering (N = 40*)
From: Use of clustering analysis in randomized controlled trials in orthopaedic surgery
Method | N (%) |
|---|---|
Stratified randomization | 23 (57.5) |
Cluster randomization | 7 (17.5) |
GEE or controlled variable | 9 (22.5) |
Stratified analysis | 8 (20.0) |
Other | 1 (2.5) |