Table 1.
Patient characteristics
|
Variables
|
Training set
|
Test set
|
P
value
|
| Patient population, n | 1715 | 735 | |
| Age (yr) | 55 (45-65) | 54 (44-66) | 0.323 |
| Male, n (%) | 1390 (81.0) | 602 (81.9) | 0.307 |
| BMI (kg/m2) | 24.6 (17.1-29.8) | 24.9 (17.3-28.9) | 0.956 |
| Tumor size (cm) | 4.5 (0.9-7.8) | 4.8 (0.8-8.3) | 0.283 |
| AFP | 8301 (489-35203) | 8842 (503-43203) | 0.058 |
| WBC (× 103/µL) | 7.3 (3.5-13.8) | 7.5 (3.3-15.8) | 0.128 |
| Hemoglobin (mg/dL) | 13.0 (10.8-15.6) | 12.7 (10.5-16.5) | 0.460 |
| PLT (× 103/µL) | 168 (102-245) | 175 (113-260) | 0.156 |
| Creatinine (mg/dL) | 0.92 (0.71-1.16) | 0.90 (0.70-1.15) | 0.128 |
| ALB (g/dL) | 3.8 (3.3-4.4) | 3.7 (3.2-4.3) | 0.603 |
| AST (IU/L) | 36.1 (6.3-163.5) | 42.4 (5.8-173.4) | 0.096 |
| Diabetes mellitus, n (%) | 109 (6.4) | 81 (11.0) | 0.098 |
| Dyslipidemia, n (%) | 395 (23.0) | 191 (26.0) | 0.063 |
| ALT (IU/L) | 39.8 (8.3-178.5) | 42.3 (6.5-169.8) | 0.132 |
| Glucose (mg/dL) | 11.8 (5.8-18.3) | 12.5 (6.3-19.8) | 0.285 |
| Cholesterol (mg/dL) | 162.2 (135.8-198.3) | 168.0 (130.0-198.3) | 0.323 |
| PRBC (units) | 0.5 (0.0-3.0) | 0.8 (0.0-3.0) | 0.112 |
| Crystalloid (mL) | 2318.8 (1500-3500) | 2218 (1500-4000) | 0.994 |
| Surgery time (min) | 278 (198-363) | 285 (202-387) | 0.856 |
| Beta blockers, n (%) | 257 (15.0) | 67 (9.1) | 0.155 |
| Aspirin, n (%) | 152 (8.9) | 46 (6.3) | 0.183 |
| RAAS blocker, n (%) | 91 (5.3) | 61 (8.3) | 0.360 |
| Insulin, n (%) | 48 (2.8) | 44 (6.0) | 0.059 |
| Systolic blood pressure | 113 (88-154.8) | 118 (95-165.5) | 0.658 |
| Diastolic blood pressure | 75 (55-84) | 77 (58-89) | 0.537 |
| Mean arterial pressure | 93 (71-119) | 108 (68-121) | 0.437 |
PLT: Platelet; AFP: Alpha-fetoprotein; WBC: White blood cell; BMI: Body mass index; ALB: Albumin; ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; PRBC: Packed red blood cell; RAAS: Renin-angiotensin-aldosterone system.