| Predictabilityat P= 1.0, % | Na | Recommended P-value | Predictability at this P-value, % | Reduction in predictability, % | P-value at which imbalance occurs |
---|---|---|---|---|---|---|
One variable | ||||||
Two categories | 33.0 | 100 | 0.8b | 32.0 | 1.0 | 0.7 |
 |  | 200 to 300 | 0.7 b | 33.0 | 0 | 0.5 |
 |  | ≥400 | 0.7 b | 33.0 | 0 | - |
Two categories - unequal prevalence | Â | 100 | 1.0 | 33.0 | 0 | 1.0 |
 |  | 200 | 0.8 b | 33.0 | 0 | 0.7 |
 |  | 300 | 0.7 b | 33.0 | 0 | 0.5 |
 |  | ≥400 | 0.7 b | 33.0 | 0 | - |
Three categories | Â | 100 | 1.0 | 32.0 | 0 | 0.9 |
 |  | 200 | 0.7 b | 32.5 | <1.0 | 0.6 |
 |  | 300 | 0.7 b | 33.0 | <1.0 | 0.5 |
 |  | ≥400 | 0.7 b | 33.0 | <1.0 | - |
Four categories | Â | 100 | 1.0 | 32.0 | 0 | 0.9 |
 |  | 200 | 0.9 b | 32.5 | <1.0 | 0.8 |
 |  | 300 | 0.7 b | 32.7 | <1.0 | 0.6 |
 |  | ≥400 | 0.7 b | 32.5 | <1.0 | 0.5 |
Two variables | ||||||
Both with 2 categories | 56.0 | 100 | 0.9 | 54.0 | 2.0 | 0.8 |
 |  | 200 | 0.7 | 48.0 | 8.0 | 0.6 |
 |  | 300 | 0.7 | 48.0 | 8.0 | 0.5 |
 |  | ≥400 | 0.7 | 48.0 | 8.0 | - |
Both with 2 categories - unequal prevalence | Â | 100 | 1.0 | 56.0 | 0 | 1.0 |
 |  | 200 | 0.9 | 54.0 | 2.0 | 0.8 |
 |  | 300 | 0.7 | 49.0 | 7.0 | 0.6 |
 |  | ≥400 | 0.7 | 48.0 | 8.0 | 0.5 |
Three variables | ||||||
All with 2 categories - equal prevalence | 67.0 | 100 | 1.0 | 67.0 | 0 | 0.9 |
 |  | 200 to 300 | 0.7 | 55.0 | 12.0 | 0.6 |
 |  | ≥400 | 0.7 | 56.0 | 11.0 | - |
All with 2 categories - unequal prevalence | Â | 100 | 1.0 | 67.0 | 0 | 0.9 |
 |  | 200 to 300 | 0.7 | 55.0 | 12.0 | 0.6 |
 |  | ≥400 | 0.7 | 55.0 | 12.0 | 0.5 |
Four variables | ||||||
All with 2 categories - equal prevalence | 74.0 | 100 | 1.0 | 74.0 | 0 | 1.0 |
 |  | 200 | 0.8 | 64.0 | 10.0 | 0.7 |
 |  | 300 | 0.7 | 57.0 | 17.0 | 0.6 |
 |  | ≥400 | 0.7 | 58.0 | 16.0 | 0.5 |