Table 2. Univariate and multivariate analyses for DFS.
| Variables | Univariate | Multivariate | ||||||
|---|---|---|---|---|---|---|---|---|
| HR | 95% CI | P-value | HR | 95% CI | P-value | |||
| Lower | Upper | Lower | Upper | |||||
| Age (continue) | 0.991 | 0.977 | 1.005 | 0.203 | ||||
| Tumor size(>20 vs. ≤20 mm) | 2.530 | 1.688 | 3.791 | <0.001 | 1.960 | 1.302 | 2.951 | 0.001 |
| Grade(III vs. I-II) | 1.132 | 0.861 | 1.488 | 0.373 | ||||
| LN status(pos vs. neg) | 4.084 | 2.857 | 5.839 | <0.001 | 3,.731 | 2.604 | 5.346 | <0.001 |
| ERstatus (pos vs. neg) | 0.900 | 0.652 | 1.242 | 0.521 | ||||
| PR status (posvs. neg) | 0.943 | 0.685 | 1.299 | 0.721 | ||||
| HER2 status (pos vs. neg) | 1.181 | 0.971 | 1.437 | 0.097 | ||||
| ki67 (>14% vs. ≤14%) | 1.283 | 0.775 | 2.214 | 0.333 | ||||
| PD-L1status (pos vs. neg) | 1.503 | 1.091 | 2.071 | 0.013 | 1.386 | 1.003 | 1.916 | 0.048 |
| TNBC (yes vs. no) | 0.987 | 0.704 | 1.384 | 0.942 | ||||
Abbreviations: LN, lymph node; pos, positive; neg, negative; HER2, human epidermal growth factor receptor type 2; TNBC, triple-negative breast cancer.