Controls/case (J) | Minimum detectable odds-ratio (OR) for 1 control/case | % Reduction towards null vs J = 1 ORa | % Reduction towards null vs J = 4 ORb | ||||||
---|---|---|---|---|---|---|---|---|---|
1.05 | 1.1 | 1.2 | 1.3 | 1.5 | 1.75 | 2 | |||
1 | 1.05 | 1.1 | 1.2 | 1.3 | 1.5 | 1.75 | 2 | 0.0% | -26.5% |
2 | 1.043 | 1.087 | 1.17 | 1.26 | 1.43 | 1.65 | 1.87 | 13.4% | -9.5% |
3 | 1.041 | 1.082 | 1.16 | 1.25 | 1.41 | 1.61 | 1.82 | 18.4% | -3.3% |
4 | 1.04 | 1.079 | 1.16 | 1.24 | 1.40 | 1.59 | 1.79 | 20.9% | 0.0% |
5 | 1.039 | 1.077 | 1.16 | 1.23 | 1.39 | 1.58 | 1.78 | 22.5% | 2.0% |
10 | 1.037 | 1.074 | 1.15 | 1.22 | 1.37 | 1.56 | 1.74 | 25.8% | 6.2% |
20 | 1.036 | 1.072 | 1.15 | 1.22 | 1.36 | 1.54 | 1.73 | 27.5% | 8.3% |
50 | 1.036 | 1.071 | 1.14 | 1.21 | 1.36 | 1.54 | 1.71 | 28.6% | 9.7% |
100 | 1.036 | 1.071 | 1.14 | 1.21 | 1.36 | 1.53 | 1.71 | 28.9% | 10.1% |
1000 | 1.035 | 1.071 | 1.14 | 1.21 | 1.35 | 1.53 | 1.71 | 29.3% | 10.5% |