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Table 2 Demographic and clinical characteristics of included patients
| Total (n = 235) | NM (n = 173) | WM (n = 62) | p | |
|---|---|---|---|---|
| Age (years) (mean ± SD) | 61.7 ± 10.4 | 62.5 ± 10.4 | 59.4 ± 10.0 | 0.041 |
| Sex, male/female | 151/84 | 105/68 | 46/16 | 0.057 |
| Chief complaint | ||||
| Pain | 150 | 106 | 44 | 0.173 |
| Without pain | 85 | 67 | 18 | |
| Jaundice | 73 | 61 | 12 | 0.200 |
| Without jaundice | 162 | 112 | 50 | |
| Weight loss | 100 | 70 | 30 | 0.279 |
| Without weight loss | 135 | 103 | 32 | |
| Personal history | ||||
| Smoking, yes/no | 48/187 | 34/139 | 14/48 | 0.624 |
| Drinking, yes/no | 38/197 | 32/141 | 6/56 | 0.106 |
| Hypertension, yes/no | 71/164 | 51/122 | 20/42 | 0.683 |
| Diabetes, yes/no | 36/199 | 25/148 | 11/51 | 0.537 |
| Interval between imaging and surgery, days | 6.3 ± 4.8 | 6.3 ± 4.6 | 6.2 ± 5.2 | 0.868 |
| Tumor size on MDCT (cm) | 4.2 ± 1.9 | 3.8 ± 1.6 | 5.5 ± 2.0 | < 0.001 |
| Tumor location | ||||
| Head | 174 | 134 | 40 | 0.046 |
| Body or tail | 61 | 39 | 22 | |
| Laboratory examinations | ||||
| ALT | 124.6 ± 173.1 | 142.2 ± 179.1 | 75.9 ± 146.1 | 0.010 |
| AST | 84.3 ± 100.5 | 94.4 ± 105.0 | 56.3 ± 81.2 | 0.010 |
| TBil | 73.9 ± 103.8 | 81.6 ± 107.6 | 52.4 ± 89.5 | 0.057 |
| DBil | 50.3 ± 74.6 | 55.4 ± 77.2 | 36.3 ± 65.7 | 0.085 |
| ALB | 40.0 ± 5.4 | 40.1 ± 5.4 | 39.7 ± 5.2 | 0.686 |
| AFP | 2.9 ± 1.8 | 2.8 ± 1.4 | 3.1 ± 2.6 | 0.293 |
| CA19–9 | 385.5 ± 378.8 | 335.7 ± 350.2 | 525.2 ± 422.0 | < 0.001 |
| CEA | 8.9 ± 20.3 | 8.1 ± 21.9 | 11.1 ± 14.7 | 0.328 |
