Table 2.
Comparison of adverse pathological features between very low risk and low risk sub-group.
| Characteristics | Very Low Risk | Low Risk | Odds Ratio | p Value |
|---|---|---|---|---|
| (n = 721) | (n = 1021) | |||
| Overall APFs | 228 (31.7%) | 455 (44.6%) | 1.54 (1.24, 1.91) | <0.001 |
| Pathological T stage ≥ pT3 | 111/568 (19.5%) | 246/861 (28.6%) | 1.47 (1.12, 1.93) | 0.013 |
| GG ≥ 3 | 124/569 (21.8%) | 184/862 (21.4%) | 0.95 (0.72, 1.24) | 0.692 |
| Positive surgical margins | 81/462 (17.5%) | 210/769 (27.3%) | 1.80 (1.33, 2.45) | <0.001 |
| Positive nodes | 11/486 (2.3%) | 15/753 (2.0%) | 0.79 (0.34, 1.88) | 0.582 |
p values for mixed effect models are reported. APF: adverse pathological findings; CIs: 95% confidence intervals.