Risk factors and predictive modeling of early postoperative liver function abnormalities

Table 2 Results of laboratory testing analysis in the normal and abnormal groups

Parameter, unit	Normal group (n = 3553)	Abnormal group (n = 167)	Statistic	P value
AST, U/L	18.00 (15.00, 22.00)	30.00 (20.00, 52.00)	Z = -12.42	< 0.01
ALT, U/L	15.00 (11.00, 21.00)	29.00 (17.00, 69.00)	Z = -10.83	< 0.01
ALP, g/L	70.00 (57.00, 87.00)	78.00 (63.64, 111.00)	Z = -4.78	< 0.01
GGT, U/L	19.00 (14.00, 30.00)	38.00 (21.00, 82.50)	Z = -9.77	< 0.01
Tbil, μmol/L	8.60 (6.00, 12.10)	10.30 (7.10, 15.60)	Z = -4.23	< 0.01
Total protein, g/L	71.30 (68.80, 74.60)	70.90 (67.05, 72.70)	Z = -3.35	< 0.01
Albumin, g/L	42.90 (40.20, 45.50)	41.50 (38.20, 44.45)	Z = -4.23	< 0.01
Globulin, g/L	27.20 (25.70, 30.40)	27.20 (25.50, 30.60)	Z = -0.45	0.65
Glu, mmol/L	5.31 (4.78, 6.36)	5.77 (5.00, 6.88)	Z = -3.11	< 0.01
HB, g/L	125.00 (109.00, 136.00)	125.00 (106.50, 140.50)	Z = -0.90	0.37
WBC, × 109/L	6.35 (5.27, 7.72)	6.37 (5.30, 7.94)	Z = -0.53	0.60
N, × 109/L	3.94 (3.07, 5.08)	3.92 (2.90, 5.13)	Z = -0.28	0.78
RBC, × 1012/L	4.33 (3.95, 4.68)	4.26 (3.74, 4.68)	Z = -1.85	0.06
PLT, × 1012/L	259.00 (215.00, 314.00)	232.00 (178.00, 278.00)	Z = -4.72	< 0.01
K+ , mmol/L	4.00 (3.80, 4.20)	4.01 (3.77, 4.21)	Z = -0.14	0.89
Na+ , mmol/L	140.00 (139.00, 142.00)	140.00 (139.00, 142.00)	Z = -1.20	0.23
Ca2+ , mmol/L	2.30 (2.30, 2.30)	2.30 (2.30, 2.30)	Z = -0.05	0.96
CL- , mmol/L	103.80 (102.10, 105.50)	103.70 (101.60, 105.40)	Z = -0.86	0.39
TC, mmol/L	4.71 (4.49, 4.91)	4.71 (4.46, 4.75)	Z = -0.42	0.67
Tg, mmol/L	1.35 (1.19, 1.45)	1.35 (1.29, 1.60)	Z = -1.29	0.20
LDL, mmol/L	3.06 (2.87, 3.20)	3.06 (2.79, 3.06)	Z = -1.14	0.25
HDL, mmol/L	1.18 (1.14, 1.26)	1.18 (0.99, 1.18)	Z = -2.96	< 0.01
Uric, mmol/L	350.00 (350.00, 350.00)	350.00 (350.00, 350.00)	Z = -0.74	0.46
EGFR, mmol/L	94.75 (81.14, 106.41)	93.72 (83.34, 104.34)	Z = -0.20	0.84
Urea, mmol/L	4.68 (3.72, 5.75)	4.81 (3.91, 5.81)	Z = -0.97	0.33
Cr, mmol/L	65.00 (56.00, 78.00)	69.00 (58.00, 83.00)	Z = -1.98	0.05

ALP: Alkaline phosphatase; ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; EGFR: Epidermal growth factor receptor; GGT: Gamma-glutamyl transpeptidase; HB: Hemoglobin; HDL: High-density lipoprotein; LDL: Low-density lipoprotein; PLT: Platelets; RBC: Red blood cells; TBIL: Total bilirubin; WBC: White blood cells; Glu: Glucose; Cr: Creatinine.