Pathological characteristics
| Characteristic | Value (%) |
| Size (cm) | |
| Median | 3.4 |
| IQR | 2.3–4.5 |
| Missing | 15 (8.2) |
| Polyp confined | |
| Yes | 22 (12.1) |
| No | 160 (87.9) |
| Lymphovascular space invasion | |
| Positive | 33 (18.1) |
| IA | 25 (75.8) |
| IB | 8 (24.2) |
| Negative | 128 (70.3) |
| Missing | 21 (11.6) |
| Omentum involved | |
| Yes | 0 (0.0) |
| No | 142 (87.8) |
| Missing | 40 (22.0) |
| Cytology | |
| Positive/suspicious | 26 (14.3) |
| Negative | 134 (73.6) |
| Missing | 22 (12.1) |