Table II.
Multivariate regression analysis of prognostic factors.
| Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|
| Multivariate regression analysis | Multivariate regression analysis | |||||
| Risk factors | HR | 95% CI | P-value | HR | 95% CI | P-value |
| Therapy | ||||||
| PVR | 1.084 | 0.831–1.415 | 0.551 | – | – | – |
| Non-PVR | ||||||
| TNM stage | ||||||
| Stage I | 1.643 | 1.214–2.225 | 0.001 | 1.912 | 1.319–2.771 | 0.001 |
| Stage II | ||||||
| Stage III | ||||||
| BMI, kg/m2 | ||||||
| <18.5 | 0.652 | 0.436–0.974 | 0.037 | 0.601 | 0.388–0.931 | 0.023 |
| ≥18.5 | ||||||
| R1 resection | ||||||
| No | 1.685 | 0.957–2.966 | 0.071 | 1.955 | 1.018–3.755 | 0.044 |
| Yes | ||||||
| LN metastasis | ||||||
| Yes | 0.646 | 0.465–0.898 | 0.009 | 0.642 | 0.440–0.936 | 0.021 |
| No | ||||||
| ALB, g/l | ||||||
| <35 | 0.568 | 0.371–0.868 | 0.009 | 0.569 | 0.350–0.923 | 0.022 |
| ≥35 | ||||||
| CA125 U/ml | ||||||
| <35 | 1.475 | 1.082–2.011 | 0.014 | 1.49 | 1.038–2.139 | 0.031 |
| ≥35 | ||||||
| CA19-9 U/ml | ||||||
| <37 | 1.708 | 1.396–2.089 | <0.001 | 1.485 | 1.178–1.872 | 0.001 |
| 37–200 | ||||||
| >200 | ||||||
BMI, body mass index; HR, hazard ratio; CI, confidence interval; TNM, Tumor-Node-Metastasis; PSM, propensity score matched; PVR, portal vein resection; ALB, albumin; CA125, carbohydrate antigen 125; CA19-9, carbohydrate antigen 19-9; LN, lymph node.