Variable | Univariate analysis | Multivariate analysis | ||
---|---|---|---|---|
HRa (95% CI) | P-value | HRa (95% CI) | P-value | |
Age, years | ||||
 65–74 | 1 |  | 1 |  |
  ≥ 75 | 2.074 (1.442–2.983) | <  0.001 | 1.935 (1.109–3.376) | 0.020 |
BMI, kg/m2 | ||||
 18.5–23.9 | 1 |  | 1 |  |
  < 18.5 | 2.995 (1.586–5.655) | 0.001 | 3.262 (1.526–6.974) | 0.002 |
  > 23.9 | 1.161 (0.731–1.844) | 0.527 | 0.918 (0.498–1.693) | 0.784 |
Histology | ||||
 DCIS | 1 |  |  |  |
 IDC | 1.611 (0.817–3.177) | 0.169 |  |  |
 Other | 1.313 (0.544–3.169) | 0.545 |  |  |
Clinical stage | ||||
 0-I | 1 |  | 1 |  |
 II | 1.172 (0.704–1.951) | 0.542 | 1.089 (0.453–2.616) | 0.850 |
 III | 5.275 (3.259–8.538) | <  0.001 | 6.215 (2.713–14.235) | <  0.001 |
HR status | ||||
 Negative | 1 |  | 1 |  |
 Positive | 0.672 (0.471–0.958) | 0.028 | 0.748 (0.442–1.269) | 0.282 |
HER2 status | ||||
 Negative | 1 |  |  |  |
 Positive | 1.167 (0.685–1.990) | 0.570 |  |  |
Ki-67 level | ||||
 Low (≤ 20%) | 1 |  | 1 |  |
 High (>  20%) | 2.102 (1.441–3.064) | < 0.001 | 1.900 (1.065–3.388) | 0.030 |
Grade | ||||
 I-II | 1 |  | 1 |  |
 III | 1.747 (1.105–2.760) | 0.017 | 1.047 (0.582–1.883) | 0.879 |