Skip to main content

Table 1 Total number of clusters required according to different cluster sizes and ICC (ES = 0.4, alpha = 0.05, power = 0.80).

From: The effectiveness of the Liverpool care pathway in improving end of life care for dying cancer patients in hospital. A cluster randomised trial

  Average size of the clusters
Intraclass Correlation Coefficient 10 15 20 25
0.01 22 16 12 10
0.05 30 24 20 18
0.10 38 32 30 28