Hypothetical distribution of susceptibility genes in the population, each with a prevalence of 10% and each carrying a relative risk of disease of 3.0.
| Gene combination | ||||
|---|---|---|---|---|
| None | Any one | Any two | All three | |
| Percentage of population | 72.9 | 24.3 | 2.7 | 0.1 |
| Relative risk | 1.0 | 3.0 | 9.0 | 27.0 |