Observational Study
Copyright ©The Author(s) 2022.
World J Gastroenterol. Oct 28, 2022; 28(40): 5881-5892
Published online Oct 28, 2022. doi: 10.3748/wjg.v28.i40.5881
Table 2 Acute-on-chronic liver failure patients characteristics (n = 95)

ACLF-1,n = 40 (42.1%)
ACLF-2, n = 33 (34.7%)
ACLF-3, n = 22 (23.2%)
P value
Male gender, n (%)21 (52.5)17 (51.5)11 (50.0)0.98
Age, yr55.0 (39.8-60.0)44.0 (36.5-53.0)49.0 (37.5-59.3)0.14
Time to LT since ACLF event54.0 (21.3-122.8)a,b31.0 (7.0-59.5)b22.0 (9.5-46.8)a0.03
Liver cirrhosis etiology, n (%)
Autoimmune14 (35.0)17 (51.5)11 (50.0)0.30
HCV9 (22.5)2 (6.1)2 (9.1)0.14
Alcoholic liver disease2 (5.0)4 (12.1)3 (13.6)0.44
NASH3 (7.5)2 (6.1)1 (4.5)0.99
Cryptogenic10 (25.0)5 (15.2)3 (13.6)0.50
Other12 (5.0)3 (9.1)2 (9.1)0.69
ACLF precipitant, n (%)
Bacterial infection14 (35.0)16 (48.5)11 (50.0)0.39
Gastrointestinal hemorrhage1 (2.5)3 (9.1)1 (4.5)0.44
Active alcoholism0 (0.0)0 (0.0)0 (0.0)0.99
Other10 (25.0)a2 (6.1)0 (0.0)a0.01
Unknown15 (37.5)12 (36.4)10 (45.5)0.77
Organ failures, n (%)
Liver14 (35.0)a,b22 (66.7)b16 (72.7)a< 0.01
Kidney18 (45.0)11 (33.3)14 (63.6)0.09
Brain5 (12.5)a10 (30.3)11 (50.0)a< 0.01
Coagulation3 (7.5)a,b12 (36.4)b11 (50.0)a< 0.001
Circulation0 (0.0)a,b8 (24.2)b,c14 (63.6)a,c< 0.0001
Lung1 (2.5)a3 (9.1)7 (31.8)a< 0.01
ACLF event clinical data
MELD-Na27 ± 4a,b29 ± 5b,c35 ± 4a,c< 0.0001
CLIF-C OF9 ± 1a,b10 ± 1b,c12 ± 2a,c< 0.0001
CLIF-C ACLF39 ± 8a43 ± 6c52 ± 6a,c< 0.0001
Total bilirubin (mg/dL)6.31 (2.99-12.91)a,b13.07 (6.39-22.31)b23.08 (10.56-27.76)a< 0.001
INR1.5 (1.2-1.9)a,b1.9 (1.4-2.5)b2.2 (1.7-2.8)a< 0.001
Serum creatinine (mg/dL)1.86 (1.18-2.27)b0.93 (0.71-1.99)b,c2.25 (1.42-2.87)c< 0.01
Leukocyte count (× 109/L)6.55 (4.73-9.43)a6.60 (4.55-8.25)c8.75 (6.88-13.05)a,c< 0.01
Pre-transplant clinical data
MELD-Na23 ± 4a25 ± 5c29 ± 8a,c< 0.0001
CLIF-C OF8 ± 2a9 ± 210 ± 2a0.01
CLIF-C ACLF37 ± 937 ± 841 ± 120.18
Total bilirubin (mg/dL)4.58 (2.94-8.60)a9.75 (5.40-16.62)19.59 (5.48-34.11)a< 0.01
INR1.4 (1.3-1.7)1.6 (1.3-2.2)1.9 (1.4-2.6)0.05
Serum creatinine (mg/dL)0.96 (0.75-1.29)a0.88 (0.72-1.17)c1.23 (0.94-1.95)a,c< 0.01
Leukocyte count (× 109/L)4.40 (3.23-6.70)4.80 (2.90-6.30)4.75 (2.48-10.45)0.92