Table 1.
Risk predictors for breast cancer classified by their odds ratio per adjusted standard deviation (OPERA) and equivalent interquartile risk ratio (IQRR).
| Risk score | OPERA | IQRR |
|---|---|---|
| New mammogram risk scores combined | 2.3 | 8 |
| Multi‐generational family history scores | ≤ 1.7 | 4 |
| Methylation risk score (mBCRS) | 1.6 | 3 |
| Polygenic risk score (PRS) | 1.6 | 3 |
| Conventional mammographic density | 1.4 | 2 |
| High‐risk mutations (BRCA1, BRCA2) | 1.2 | 1.5 |
| First‐degree family history (yes/no) | 1.2 | 1.5 |
| Number of childbirths | 1.1 | 1.3 |
| Age at menarche | 1.05 | 1.2 |
| Age at first childbirth | 1.03 | 1.1 |