Risk-factor distributions and relative risk (RR) functions
| Distribution | Normal | |||
| Category | Proportion | Average BMI | RR(x) | |
| Log-linear | Per unit | |||
| Normal | 0.500 | 22.584 | 1.000 | 1.000 |
| Overweight | 0.452 | 27.005 | 1.404 | 1.524 |
| Obese | 0.048 | 31.302 | 1.952 | 2.295 |
| Distribution | Log-normal | |||
| Category | Proportion | Average BMI | RR(x) | |
| Log-linear | Per unit | |||
| Normal | 0.524 | 22.704 | 1.000 | 1.000 |
| Overweight | 0.420 | 26.971 | 1.369 | 1.502 |
| Obese | 0.057 | 31.648 | 1.931 | 2.346 |