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Multivariate analysis.
| Odds ratio (95% CI) | P value | |
|---|---|---|
| Race | ||
| White | Reference | |
| Black | 2.075 (1.129–3.815) | 0.0125 |
| Other | 2.367 (1.220–4.589) | |
| Largest clinical diameter (cm) | ||
| Continuous | 1.288 (1.069–1.552) | 0.0250 |
| Shave margins taken | ||
| Yes | 0.229 (0.097–0.537) | 0.0028 |
| No | Reference | |
| Additional margins taken | ||
| Yes | 0.504 (0.292–0.871) | 0.0054 |
| No | Reference | |
| Percentage of DCIS | ||
| <25% | Reference | <0.0001 |
| >25% | 4.655 (2.523–8.589) |
DCIS: ductal carcinoma insitu.
