Comparison of different preoperative objective nutritional indices for evaluating 30-d mortality and complications after liver transplantation

Table 7 Comparation of the clinical characteristics among different nutritional risk index groups

Characteristics	Low NRI (n = 30)	High NRI (n = 132)	P value
Age, yr	53.0 (44.0-56.0)	52.5 (46.0-58.0)	0.587
Male/female	26/4	107/25	0.602
BMI	21.5 (19.0-23.4)	23.3 (21.4-25.4)	0.012
Hypertension, yes/no	4/26	14/118	0.747
Diabetes, yes/no	5/25	17/115	0.563
HBsAg-positive, yes/no	21/9	97/35	0.820
Operation time (min)	540.0 (452.5-650.3)	520.0 (440.0-600.0)	0.344
Anhepatic phase (min)	58.0 (48.5-65.0)	57.0 (47.0-66.0)	0.719
Donor age, yr	46.5 (39.0-59.6)	43.0 (35.1-53.0)	0.651
Total ischemia time (min)	329.5 (271.4-395.0)	286.5(234.7-356.2)	0.323
Graft weight (kg)	1.3 (1.2-1.6)	1.5 (1.4-1.8)	0.409
Split LT/whole LT	2/28	18/114	0.373
Blood loss (mL)	2000.0 (850.0-5000.0)	1650.0 (925.0-3500.0)	0.305
Intraoperative urine volume (mL)	2600.0 (1650.0-3225.0)	2800.0 (1600.0-4000.0)	0.636
Prealbumin (mg/L)	56.0 (33.0-82.0)	109.5 (54.5-172.0)	< 0.001
NRI	83.8 (81.2-85.5)	98.8 (93.1-103.5)	< 0.001
CONUT	8.0 (7.0-9.8)	5.0 (4.0-6.0)	< 0.001
PNI	34.9 (31.7-38.9)	43.7 (40.3-47.6)	< 0.001
ALB (g/L)	29.8 (27.4-31.2)	39.0 (35.6-41.4)	< 0.001
Lymphocyte count (× 109/mL)	0.9 (0.5-1.6)	0.9 (0.6-1.4)	0.978
Alanine aminotransferase (U/L)	41.5 (19.8-62.5)	29.5 (19.0-45.8)	0.154
Aspartate aminotransferase (U/L)	64.5 (38.8-126.3)	42.0 (29.3-77.5)	0.008
Total bilirubin (μmol/L)	53.0 (20.4-250.4)	28.4 (14.8-87.8)	0.047
Creatinine (umol/L)	73.0 (57.0-86.3)	70.0 (59.3-85.0)	0.848
Preoperative MELD score	15.0 (11.8-24.8)	11.0 (7.3-20.8)	0.028
Total cholesterol (mmol/L)	2.7 (2.0-4.4)	3.6 (2.3-4.6)	0.050
Prothrombin time (s)	17.8 (16.2-23.4)	15.9 (14.1-20.0)	0.037
Platelet (× 109/mL)	63.5 (32.5-143.0)	67.5 (47.0-152.8)	0.386

BMI: Body mass index; HBsAg: Hepatitis B surface antigen; CONUT: Control nutritional status; PNI: Prognostic nutritional index; NRI: Nutritional risk index; MELD: Model for end-stage liver disease; LT: Liver transplantation; ALB: Albumin.