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Table 1 Patient characteristics

From: A combined prediction model for biliary tract cancer using the prognostic nutritional index and pathological findings: a single-center retrospective study

Characteristic Patients
Age (years), mean ± SD (range) 74.0 ± 9.55 (39–92)
Sex (male/female) 73/43
BMI (kg/m2), mean ± SD (range) 22.39 ± 3.65 (14.20–32.46)
Preoperative laboratory data, mean ± SD (range)
 Albumin concentration (g/dL) 3.79 ± 0.53 (1.70–4.80)
 Platelet count (× 104/mm3) 21.65 ± 66.61 (3.37–46.30)
 Neutrophil count (× 103/mm3) 3.75 ± 1.88 (1.01–15.39)
 Lymphocyte count (× 103/mm3) 1.58 ± 0.74 (0.48–5.80)
 CRP level (mg/dL) 1.16 ± 2.77 (0.01–24.18)
 CEA level (ng/mL) 6.02 ± 13.12 (0.56–113.06)
 CA19-9 level (U/mL) 1 019.91 ± 4 156.75 (2.00–39,284.20)
 PNI 45.79 ± 6.53 (22.21–62.98)
 GPS (0/1/2) 72/33/11
 CAR 0.39 ± 1.41 (0.002–14.22)
 NLR 2.80 ± 2.24 (0.75–14.76)
 PLR 158 ± 85 (41–561)
Type of cancer, n (%)
 Intrahepatic cholangiocarcinoma 30 (25.9)
 Gallbladder carcinoma 29 (25.0)
 Distal cholangiocarcinoma 27 (23.3)
 Ampullary carcinoma 17 (14.7)
 Perihilar cholangiocarcinoma 13 (11.2)
Preoperative cholangitis, n (%) 43 (37.1)
Comorbidities (absent/present) 34/82
Surgical procedure, n (%)
 Cholecystectomy 11 (9.5)
 Bile duct resection w/o liver resection 1 (0.9)
 Minor hepatectomy 25 (21.6)
 Major hepatectomy 35 (30.2)
 Pancreaticoduodenectomy 42 (36.2)
 Hepatopancreaticoduodenectomy 2 (1.7)
Operation time (minutes), mean ± SD (range) 457.1 ± 171.1 (124–1049)
Blood loss (mL), mean ± SD (range) 772.2 ± 1 507.8 (10–13,870)
Blood transfusion, n (%) 16 (13.8)
T stage (1/2/3/4) 18/39/51/8
N stage (1), n (%) 47 (40.5)
UICC stage (sixth edition) (0/I/II/III/IV) 3/17/48/31/16
Resection (R0/R1/R2) 98/15/3
Tumor differentiation (well/moderate/poor/pap/well-pap/other/unknown) 43/32/9/7/5/7/13
Postoperative adjuvant chemotherapy, n (%) 80 (69.0)
Postoperative complications (Clavien–Dindo grade ≥ IIIa) (absent/present) 43/73
  1. BMI body mass index, CA19-9 carbohydrate antigen 19-9, CAR CRP to albumin ratio, CEA carcinoembryonic antigen, CRP C-reactive protein, GPS Glasgow Prognostic Score, NLR neutrophil to lymphocyte ratio, PLR platelet to lymphocyte ratio, PNI prognostic nutritional index, SD standard deviation, UICC Union for International Cancer Control, w/o without