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Distribution of prognostic index
| BCT (n = 224) | Mastectomy (n = 327) | P value | |
|---|---|---|---|
| Prognostic index | <0.001 | ||
| 0 | 91 (41%) | 37 (11%) | |
| 1 | 82 (37%) | 107 (33%) | |
| 2 | 38 (17%) | 124 (38%) | |
| 3 | 12 (5%) | 47 (14%) | |
| 4 | 1 (<1%) | 12 (4%) | |
| Prognostic index factorsa | |||
| cN2-N3 disease | 32 (14%) | 74 (23%) | |
| LVI | 84 (38%) | 206 (63%) | |
| Pathologic tumor size >2 cm | 58 (26%) | 184 (56%) | |
| Pathologic multifocal disease | 24 (11%) | 80 (24%) |
Percentages do not add up to 100% because several patients had multiple factors or no factors
