Table 2. COX regression analysis of prognostic factors for patients with stage pN0 ESCC.
| Variables | Univariate COX regression | Multivariate COX regression | |||
|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | ||
| Gender | |||||
| Male | Reference | Reference | |||
| Female | 0.073 (0.010–0.526) | 0.009 | 0.074 (0.010–0.534) | 0.01 | |
| Age, years | |||||
| <60 | Reference | ||||
| ≥60 | 1.030 (0.596–1.778) | 0.917 | |||
| Position | |||||
| Upper | Reference | ||||
| Middle | 1.058 (0.453–2.473) | 0.896 | |||
| Lower | 0.793 (0.275–2.291) | 0.669 | |||
| Surgery | |||||
| Sweet | Reference | ||||
| Ivor-Lewis | 0.876 (0.527–1.458) | 0.612 | |||
| Mckeown | 0.590 (0.206–1.693) | 0.327 | |||
| T stage | |||||
| T1+T2 | Reference | Reference | |||
| T3+T4 | 2.017 (1.228–3.315) | 0.006 | 2.306 (1.395–3.812) | 0.001 | |
| Length | |||||
| <3 | Reference | ||||
| <5 | 1.374 (0.749–2.521) | 0.304 | |||
| ≥5 | 1.373 (0.707–2.666) | 0.349 | |||
| Differentiation | |||||
| High | Reference | ||||
| Moderately | 1.518 (0.635–3.630) | 0.348 | |||
| Poorly | 2.193 (0.898–5.355) | 0.085 | |||
| Harvested LNs | |||||
| <12 | Reference | Reference | |||
| ≥12 | 0.534 (0.327–0.871) | 0.012 | 0.476 (0.290–0.781) | 0.003 | |
| Adjuvant therapy | |||||
| No | Reference | ||||
| Yes | 0.885 (0.530–1.479) | 0.641 | |||
| Preoperative CT | |||||
| Negative | Reference | Reference | |||
| Positive | 1.727 (1.055–2.825) | 0.030 | 1.723 (1.051–2.823) | 0.031 | |