Table 1.
Clinicopathologic Features of the Cohort
| Characteristic | Value |
|---|---|
| Patients, n | 444 |
| Preoperative clinical | |
| Median age at surgery, year (IQR) | 58 (51–65) |
| Male sex (%) | 311 (70.0) |
| Smoking history (%) | 138 (31.1) |
| Alcohol history (%) | 90 (20.3) |
| Hypertension (%) | 207 (46.6) |
| Diabetes (%) | 81 (18.2) |
| Median BMI (kg/m2) (IQR) | 24.2 (22.1–26.4) |
| ECOG performance status (%) | |
| 0 | 302 (68.0) |
| ≥1 | 142 (32.0) |
| Charlson Comorbidity Index | |
| 0–1 | 386 (86.9) |
| ≥2 | 58 (13.1) |
| Surgical | |
| Type of treatment (%) | |
| Partial | 137 (30.9) |
| Radical | 307 (69.1) |
| Surgical approach (%) | |
| Open | 11 (2.5) |
| Laparoscopic | 364 (82.0) |
| Da Vinci robot | 69 (15.5) |
| Pathologic | |
| Grade (%) | |
| 1 | 22 (5.0) |
| 2 | 314 (70.7) |
| 3 | 88 (19.8) |
| 4 | 20 (4.5) |
| pT-classification (%) | |
| pT1 | 370 (83.3) |
| pT2 | 23 (5.2) |
| pT3 | 18 (4.1) |
| pT4 | 33 (7.4) |
| pN-classification (%) | |
| pN0 | 442 (99.5) |
| pN1 | 2 (0.5) |
| Median pathologic tumor size (IQR) | 3.5 (2.6–5.0) |
| Pathological necrosis (%) | 31 (7.0) |
| Preoperative hematologic index | |
| Hemoglobin, g/dL | 139 (129.3–149.0) |
| WBC, 109/L | 6.0 (5.0–7.0) |
| Neutrophil count, 109/L | 3.5 (2.9–4.3) |
| Lymphocyte count, 109/L | 1.7 (1.4–2.1) |
| Monocyte count, 109/L | 0.4 (0.4–0.6) |
| NLR | 2.0 (1.6–2.6) |
| PLR | 112.9 (87.1–143.9) |
| LMR | 3.8 (3.0–5.0) |
| RDW | 13.2 (12.9–13.7) |
| Risk group | |
| UISS risk group, n (%) | |
| Low | 210 (47.3) |
| Intermediate | 194 (43.7) |
| High | 40 (9.0) |
| SSIGN risk group, n (%) | |
| Low (0–2) | 363 (81.8) |
| Intermediate (3–5) | 70 (16.0) |
| High (≥6) | 10 (2.3) |
Note: Data presented as median (IQR) or n (%).
Abbreviations: BMI, body mass index; ECOG, Eastern Cooperative Oncology Group; IQR, interquartile range; WBC, white blood cell; NLR, Neutrophil-to-Lymphocyte Ratio; PLR, platelet-to-lymphocyte ratio; LMR, lymphocyte-to-monocyte ratio; RDW, red blood cell distribution width; UISS, University of California, Los Angeles, integrated staging system; SSIGN, the stage, size, grade, and necrosis (SSIGN) score.