TABLE 3.
Uni‐ and multivariable logistic regression analysis for early recurrence.
| Variable | Univariable | Multivariable | ||
|---|---|---|---|---|
| OR [95% CI] | p‐Value | OR [95% CI] | p‐Value | |
| Age, year | 0.96 [0.90, 1.03] | 0.28 | – | – |
| Sex, female | 0.79 [0.22, 2.69] | 0.71 | – | – |
| CA 19‐9, >485.2 U/mL a | 5.50 [1.43, 22.6] | 0.01 | 4.49 [1.07, 20.0] | 0.04 |
| CEA, >7.8 ng/mL a | 2.72 [0.58, 12.3] | 0.19 | – | – |
| Primary tumor location, body/tail | 0.80 [0.21, 2.77] | 0.73 | – | – |
| T category, T3/4 | 0.37 [0.08, 1.72] | 0.19 | – | – |
| Nodal disease | 1.39 [0.40, 5.24] | 0.61 | – | – |
| Histological differentiation, moderately/poorly | 1.91 [0.27, 38.5] | 0.51 | – | – |
| R1 resection | 2.92 [0.11, 77.6] | 0.46 | – | – |
| Completion of PI4W + GEM treatment | 0.20 [0.05, 0.71] | 0.02 | 0.23 [0.05, 0.89] | 0.04 |
Note: Bold font signifies p‐value < 0.05.
Abbreviations: CA 19‐9, carbohydrate antigen 19‐9; CEA, carcinoembryonic antigen; PI4W, portal infusion chemotherapy for 4 weeks; GEM, gemcitabine.
a
Cutoff values were calculated using the Youden method in the receiver‐operating characteristics curves.