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Table 1 Power calculations for sample of 120Difference between groups

From: The Leeds Evaluation of Efficacy of Detoxification Study (LEEDS) prisons project pilot study: protocol for a randomised controlled trial comparing dihydrocodeine and buprenorphine for opiate detoxification

  Power Difference between groups Power
70% × 60% 21% 40% × 30% 21%
70% × 50% 61% 40% × 20% 67%
70% × 45% 80% 40% × 15% 88%
70% × 40% 92%   
60% × 50% 20% 30% × 20% 24%
60% × 40% 59% 30% × 15% 50%
60% × 35% 79% 30% × 10% 79%
60% × 30% 92%   
50% × 40% 20% 20% × 15% 11%
50% × 30% 61% 20% × 10% 33%
50% × 25% 82% 20% × 5% 70%