From: Preoperative prediction of peripancreatic vein invasion by pancreatic head cancer
 | Training cohort (n = 181) | Validation cohort (n = 66) |  | ||
---|---|---|---|---|---|
No. of patients | % | No. of patients | % | ||
Gender | Â | Â | Â | Â | 0.657 |
 Male | 104 | 57.5 | 40 | 60.6 |  |
 Female | 77 | 42.5 | 26 | 39.4 |  |
Age, years | Â | Â | Â | Â | 0.986 |
 Median | 65.0 | 64.0 |  | ||
 IQR | 59.0–68.0 | 57.8–69.0 |  | ||
ADL | Â | Â | Â | Â | 0.781 |
 Grade I | 120 | 66.3 | 45 | 69.2 |  |
 > Grade I | 61 | 33.7 | 21 | 31.8 |  |
Jaundice | Â | Â | Â | Â | 0.210 |
 Yes | 70 | 38.7 | 31 | 47.0 |  |
 No | 111 | 61.3 | 35 | 53.0 |  |
Pain | Â | Â | Â | Â | 0.481 |
 Yes | 109 | 60.2 | 43 | 65.2 |  |
 No | 72 | 39.8 | 23 | 34.8 |  |
Weight loss | Â | Â | Â | Â | 0.730 |
 Yes | 84 | 46.4 | 29 | 43.9 |  |
 No | 97 | 53.6 | 37 | 56.1 |  |
CA 19–9, U/mL |  |  |  |  | 0.313 |
 Median | 280.4 | 439.1 |  | ||
 IQR | 24.4–1614.1 | 53.9–2298.6 |  | ||
TB, μmol/mL |  |  |  |  | 0.956 |
 Median | 49.4 | 21.1 |  | ||
 IQR | 11.2–151.1 | 11.1–182.9 |  | ||
Albumin, g/L | Â | Â | Â | Â | 0.349 |
 Median | 39.2 | 39.2 |  | ||
 IQR | 36.1–41.8 | 36.6–43.7 |  | ||
Tumor staging on CT | Â | Â | Â | Â | / |
 T1/T2 | 0 | 0 | 0 | 0 |  |
 T3 | 181 | 100 | 66 | 100 |  |
 T4 | 0 | 0 | 0 | 0 |  |
Lymph node staging on CT | Â | Â | Â | Â | 0.698 |
 N0 | 80 | 44.2 | 31 | 47.0 |  |
 N1 | 101 | 55.8 | 35 | 53.0 |  |
M staging on CT | Â | Â | Â | Â | / |
 M0 | 181 | 100 | 66 | 100 |  |
 M1 | 0 | 0 | 0 | 0 |  |
TNM staging on CT | Â | Â | Â | Â | 0.698 |
 IA/IB | 0 | 0 | 0 | 0 |  |
 IIA | 80 | 44.2 | 31 | 47.0 |  |
 IIB | 101 | 55.8 | 35 | 53.0 |  |
 III/IV | 0 | 0 | 0 | 0 |  |
Tumor size on CT, cm | Â | Â | Â | Â | 0.701 |
 Median | 3.5 | 3.6 |  | ||
 IQR | 2.8–4.6 | 2.8–4.44 |  | ||
Length of tumor contact on CT, cm | Â | Â | Â | Â | 0.849 |
 Median | 2.5 | 2.5 |  | ||
 IQR | 2.0–3.0 | 2.0–3.0 |  | ||
Pathologic venous wall invasion | Â | Â | Â | Â | 0.868 |
 Yes | 152 | 84.0 | 56 | 84.8 |  |
 No | 29 | 16.0 | 10 | 15.2 |  |
Surgical margin | Â | Â | Â | Â | 0.146 |
 R0 | 163 | 90.1 | 55 | 83.3 |  |
 R1 | 18 | 9.9 | 11 | 16.7 |  |