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Table 1 Values of the design features in a stepped-wedge cluster randomised trial and parallel cluster randomised trial that were used in the simulation study

From: The impact of varying cluster size in cross-sectional stepped-wedge cluster randomised trials

Study design Variable Values used
Stepped-wedge cluster randomised trial Number of sequences 2, 3, 4, 6, 12
Number of clusters 12, 24, 48, 96
Cluster mean correlation 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0
Coefficient of variation of cluster sizes 0.25, 0.50, 0.75, 1.00, 1.25, 1.50
Parallel cluster randomised trial Number of clusters 12, 24, 48, 96
Cluster mean correlation 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0
Coefficient of variation of cluster sizes 0.25, 0.50, 0.75, 1.00, 1.25, 1.50
  1. Total number of possible scenarios: 1320 for stepped-wedge cluster randomised trial and 264 for parallel cluster randomised trial