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Odds ratios (OR) and 95% confidence intervals (CI) for the association between time period of diagnosis (before or after January1997) and the choice of pre-GCRA CRRM
| Diagnosed prior to Jan 1997 (n = 131) | Diagnosed in or after Jan 1997 (n = 247) | ORa (95% CI) | P value | |
|---|---|---|---|---|
| Pre-GCRA CRRM | ||||
| Yes | 32 | 25 | 1 | |
| No | 99 | 222 | 2.9 (1.6–5.2) | .0003 |
Age at diagnosis was included in the logistic regression model.
GCRA, genetic cancer risk assessment; CRRM, contralateral risk-reducing mastectomy.
