Table 8

Power analysis for primary hypothesis
Baseline recurrence rate % Reduction Power Total births Total subject years
0.07 70 0.8 524 5475
0.7 418 4368
50 0.8 1114 11641
0.7 874 9133
30 0.8 3324 34734
0.7 2574 26897
0.05 70 0.8 742 7753
0.7 590 6165
50 0.8 1582 16531
0.7 1240 12957
30 0.8 4734 49467
0.7 3666 38307
0.03 70 0.8 1254 13103
0.7 996 10408
50 0.8 2676 27962
0.7 2096 21902
30 0.8 8024 83845
0.7 6210 64890

Wehby et al.

Wehby et al. BMC Pediatrics 2012 12:184   doi:10.1186/1471-2431-12-184

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