% with policy in control arm (p1) | % with policy in intervention arm (p2) | Size of effect (RR) | Total number of hospitals needed to detect with 80% power at 5% level of statistical significance (two-sided test) |
---|---|---|---|
60 | 82 | 1.4 | 126 |
55 | 78 | 1.4 | 124 |
50 | 74 | 1.5 | 121 |
45 | 69 | 1.5 | 126 |
40 | 64 | 1.6 | 128 |
35 | 59 | 1.6 | 128 |