Table 3.
Univariate and multivariate analyses of various predictors of disease-free survival.
| Variable | No.patients | No.events (%) | Univariate analysis | Multivariate analysis |
|---|---|---|---|---|
| P | P | |||
| Age | 0.145 | |||
| <40 | 18 | 8 (44.4%) | ||
| 40~59 | 67 | 35 (52.2%) | ||
| ≥60 | 36 | 23 (63.9%) | ||
| Operation method | 0.427 | |||
| MRM | 109 | 60 (55.0%) | ||
| BCS | 9 | 3 (33.3%) | ||
| Others | 3 | 3 (100.0%) | ||
| Tumor size | 0.165 | |||
| ≤2 | 41 | 18 (43.9%) | ||
| 2~5 | 64 | 39 (60.9%) | ||
| >5 | 16 | 9 (56.3%) | ||
| Lymph node involvement | 0.967 | |||
| LN(−) | 24 | 13 (54.2%) | ||
| LN(+) | 97 | 53 (54.6%) | ||
| Number of positive lymph nodes | 0.672 | |||
| 0 | 24 | 13 (54.2%) | ||
| 1~3 | 38 | 20 (52.6%) | ||
| 4~9 | 29 | 15 (51.7%) | ||
| ≥10 | 30 | 18 (60.0%) | ||
| Pathologic stage | 0.641 | |||
| I | 12 | 7 (58.3%) | ||
| II | 48 | 24 (50.0%) | ||
| III | 61 | 35 (57.4%) | ||
| HR | 0.208 | |||
| (−) | 56 | 34 (60.7%) | ||
| (+) | 65 | 32 (49.2%) | ||
| Chemotherapy | 0.195 | |||
| No | 2 | 2 (100.0%) | ||
| Yes | 119 | 64 (53.8%) | ||
| Radiation | 0.608 | |||
| No | 45 | 25 (55.6%) | ||
| Yes | 60 | 34 (56.7%) | ||
| NA | 16 | 7 (43.8%) | ||
| PREX1 | 0.000 | 0.000 | ||
| Negative | 66 | 47 (71.2%) | ||
| Positive | 55 | 19 (34.5%) | ||
| Basal-like feature | 0.018 | 0.174 | ||
| Present | 30 | 22 (73.3%) | ||
| Absent | 81 | 44 (48.4%) | ||
| Hormone therapy | 0.001 | 0.009 | ||
| No | 65 | 44 (67.7%) | ||
| Yes | 46 | 20 (43.5%) | ||
| NA | 10 | 2 (20.0%) | ||