Positive predictive values of tests for susceptibility conferring genotypes for a disease with a lifetime risk in a given population#
| Risk genotype frequency % | Relative risk | ||||
| 1.5 | 2.0 | 5.0 | 10.0 | 20.0 | |
| 0.1 | 7.5 | 10.0 | 24.9 | 49.6 | 98.1 |
| 0.5 | 7.5 | 10.0 | 24.5 | 47.8 | 91.3 |
| 1.0 | 7.5 | 9.9 | 24.0 | 45.9 | 84.0 |
| 10.0 | 7.1 | 9.1 | 17.9 | 26.3 | 34.5 |
| 30.0 | 6.5 | 7.7 | 11.4 | 13.5 | 14.9 |
#: assuming a population frequency of 5%. Reproduced from 43 with permission from the publisher.