Table 1. Univariate and multivariate regression analyses.
| Univariate OR (95% CI) | P-value | Multivariate OR (95% CI) | P-value | |
|---|---|---|---|---|
| Age | 1.25 (0.91–1.71) | 0.1702 | – | – |
| Clinical tumour size (mm) | 1.94 (1.72–2.20) | <0.001 | 1.7 (1.5–1.9) | <0.001 |
| Clinical nodal status | 7.8 (5–12) | <0.001 | 4.1 (2.6–6.6) | <0.001 |
| Oestrogen receptor status | 0.66 (0.41–1.07) | 0.09 | 1.7 (0.9–3.4) | 0.13 |
| Progesterone receptor status | 0.53 (0.35–0.81) | 0.0035 | 0.6 (0.3–1) | 0.05 |
| Nuclear grade | 1.3 (0.6–2.8) | 0.49 | ||
| HER2 positive | 1.41 (0.82–2.44) | 0.21 | – | – |
Abbreviations: CI=confidence interval; OR=odds ratio.