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Table 2 Number of convergence failures per 2000 simulations of scenario A

From: Minimum number of clusters and comparison of analysis methods for cross sectional stepped wedge cluster randomised trials with binary outcomes: A simulation study

ICC k n jk True time effect OR = 1 True time effect OR = 1.227
GEE GLMM Cluster summaries method Fixed effects model GEE GLMM Cluster summaries method Fixed effects model
0.01 3 5 102 0 0 105 61 0 1 65
  10 7 0 0 7 2 0 1 2
6 5 7 0 0 7 2 0 0 2
9 5 1 0 0 1 0 0 0 0
0.05 3 5 193 5 1 182 133 2 0 141
  10 35 0 0 36 21 0 0 21
6 5 10 0 0 11 8 0 0 8
9 5 0 0 0 0 1 0 0 1
0.1 3 5 261 8 6 251 209 5 1 221
  10 85 3 0 85 63 0 0 65
  50 2 0 0 2 2 0 0 2
  100 1 0 0 0 2 0 0 2
6 5 32 0 0 30 23 0 0 29
  10 1 0 0 1 3 0 0 3
9 5 6 0 0 6 4 0 0 4
  1. Only scenarios where at least one method had a convergence failure are shown. All methods adjust for time in the model