Unadjusted analysis of the effect of variables on 10-year locoregional recurrence (LRR) and distant recurrence (DR).
| Characteristics | LRR No. (%) | P | DR No. (%) | P |
|---|---|---|---|---|
| Age, years | 0.83 | 0.22 | ||
| < 50 | 28 (9) | 38 (12) | ||
| ≥ 50 | 20 (9) | 38 (16) | ||
| Tumor size (pT) | 0.81 | 0.11 | ||
| T1 | 16 (9) | 20 (11) | ||
| T2 | 32 (9) | 56 (16) | ||
| Tumor location | 0.21 | 0.13 | ||
| Medial | 9 (7) | 13 (11) | ||
| Central | 7 (6) | 13 (10) | ||
| Lateral | 32 (11) | 50 (17) | ||
| Histology | 0.84 | 0.01 | ||
| Ductal | 39 (9) | 69 (16) | ||
| Non-Ductal | 9 (9) | 7 (7) | ||
| Histological grade | 0.92 | 0.37 | ||
| Grade I | 24 (10) | 36 (15) | ||
| Grade II | 5 (9) | 4 (8) | ||
| Grade III | 19 (8) | 36 (15) | ||
| No. of positive nodes | 0.01 | 0.03 | ||
| None | 23 (7) | 41 (12) | ||
| 1-3 nodes | 25 (13) | 35 (18) | ||
| Positive nodes (%) | < 0.001 | < 0.001 | ||
| ≤ 20% | 43 (8) | 72 (14) | ||
| > 20% | 5 (71) | 4 (57) | ||
| Estrogen receptor status | 0.31 | 0.76 | ||
| Positive | 13 (6) | 30 (15) | ||
| Negative | 20 (11) | 29 (16) | ||
| Progesterone receptor status | 0.77 | 0.97 | ||
| Positive | 17 (8) | 29 (15) | ||
| Negative | 18 (9) | 30 (15) | ||
| Preoperation chemotherapy | 0.10 | 0.78 | ||
| Yes | 6 (5) | 16 (13) | ||
| No | 42 (10) | 60 (14) | ||
| Postoperation chemotherapy | 0.22 | 0.38 | ||
| Yes | 47 (9) | 73 (15) | ||
| No | 1 (3) | 3 (8) | ||
| Cycles of postoperation chemotherapy | 0.66 | 0.46 | ||
| ≤ 4 | 35 (10) | 18 (13) | ||
| > 4 | 12 (9) | 55 (15) | ||
| Radiotherapy | 0.86 | 0.42 | ||
| Yes | 23 (9) | 35 (13) | ||
| No | 25 (9) | 41 (16) | ||
| Hormonal therapy | 0.84 | 0.66 | ||
| Yes | 20 (9) | 35 (15) | ||
| No | 28 (9) | 41 (13) |