Table 1 Calculations of the sample size (per group using a dominant model), required to detect different odds ratios in case-control analysis, assuming alpha = 0.003; power = 80% and ratio cases/controls = 1
Odds ratio | Sample Size (N) |
|---|---|
1.25 | 2531 |
1.50 | 760 |
1.75 | 398 |
2.00 | 260 |
2.25 | 191 |
2.50 | 150 |
2.75 | 124 |
3.00 | 106 |