Table 8.
Multivariate logistic regression for predicting ability for pathological positive level III axillary lymph nodes
| Beta coefficient (β) | Std. error | Odds ratio (OR) | 95% C.I. for OR | p-value | ||
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Age > 50 years (RC: age ≤ 50 years) | 0.92 | 1.12 | 2.52 | 0.28 | 22.61 | 0.409 |
| Inner | 1.80 | 2.00 | 6.05 | 0.12 | 307.36 | 0.369 |
| Outer | 1.98 | 1.50 | 7.28 | 0.38 | 138.32 | 0.187 |
| Tumor size ≥ 3 cm (RC: < 3 cm) | − 1.46 | 1.12 | 0.23 | 0.03 | 2.07 | 0.191 |
| Tumor grade—3 (RC: Grade 1 or 2) | − 1.16 | 1.17 | 0.31 | 0.03 | 3.11 | 0.321 |
| No. of positive ALN ≥ 3 (RC: < 3) | 2.39 | 1.02 | 10.93 | 1.49 | 80.13 | 0.019* |
| ER—positive (RC: negative) | − 2.49 | 2.13 | 0.08 | 0.00 | 5.41 | 0.243 |
| PR—positive (RC: negative) | − 4.49 | 2.37 | 0.01 | 0.00 | 1.17 | 0.058 |
| HER2—positive (RC: negative) | − 0.28 | 1.08 | 0.76 | 0.09 | 6.33 | 0.799 |
| LVI—positive (RC: negative) | 3.84 | 1.45 | 46.45 | 2.72 | 79.62 | 0.008* |
| PNI—positive (RC: negative) | − 1.34 | 1.33 | 0.26 | 0.02 | 3.51 | 0.311 |
| ECE—positive (RC: negative) | 0.66 | 1.17 | 1.94 | 0.19 | 19.28 | 0.572 |