OR | n2 = 0 | 100 | 200 | 400 |
---|---|---|---|---|
Power (no covariate adjustment) | ||||
 1.5 | 65.95% | 58.40% | 50.80% | 30.77% |
 1.8 | 87.76% | 83.35% | 77.40% | 54.17% |
 3 | 99.32% | 99.25% | 98.69% | 93.91% |
 5 | 99.85% | 99.90% | 99.81% | 99.40% |
Power (with population as a covariate) | ||||
 1.5 |  | 64.29% | 64.56% | 62.52% |
 1.8 |  | 87.35% | 86.77% | 85.10% |
 3 |  | 99.27% | 99.15% | 99.25% |
 5 |  | 99.83% | 99.86% | 99.90% |