Table 4.
Correlation between SII and baseline characteristics
| Parameters | SII ≤578 | SII >578 | P-value |
|---|---|---|---|
| Age (years) | |||
| ≤35 | 13 | 18 | 0.322 |
| >35 | 65 | 59 | |
| Tumor stage | |||
| T1 | 20 | 9 | 0.038 |
| T2–4 | 58 | 68 | |
| Tumor differentiation | |||
| I–II | 53 | 40 | 0.119 |
| III | 22 | 30 | |
| Lymph node involvement | |||
| N0 | 36 | 20 | 0.012 |
| N1–3 | 42 | 57 | |
| AJCC stage | |||
| I | 14 | 7 | 0.158 |
| II–III | 64 | 70 | |
| Pathological type | |||
| ILC | 12 | 17 | 0.310 |
| IDC | 66 | 60 | |
| Surgery | |||
| Breast-conserving surgery | 11 | 4 | 0.101 |
| Radical mastectomy | 67 | 73 |
Abbreviations: AJCC, American Joint Committee on Cancer; SII, systemic immune-inflammation index; IDC, Intraductal Carcinoma; ILC, Intralobular Carcinoma