Retrospective Study
Copyright ©The Author(s) 2022.
World J Clin Cases. Oct 16, 2022; 10(29): 10467-10477
Published online Oct 16, 2022. doi: 10.12998/wjcc.v10.i29.10467
Table 1 Participant characteristics

Derivation cohort (n = 329)
Internal validation cohort (n = 164)
P
Age (yr), mean ± SD53.76 ± 11.6457.38 ± 11.890.001a
Male sex, n (%)253 (76.90)116 (70.70)0.137
Hospitalization period (d), mean ± SD8.40 ± 5.889.49 ± 4.690.026a
Liver cirrhosis etiology, n (%)
HBV220 (66.90)96 (58.50)0.07
HCV13 (3.95)6 (3.66)0.87
Alcoholic liver disease52 (15.80)30 (18.29)0.49
Schistosomiasis cirrhosis14 (4.25)8 (4.88)0.75
Primary biliary cirrhosis3 (0.90)5 (3.05)0.08
Cryptogenic cirrhosis27 (8.21)18 (11.00)0.31
Hospitalization reason, n (%)
Variceal bleeding150 (45.60)76 (46.34)0.875
Hepatic encephalopathy86 (26.14)43 (26.22)0.985
Infection45 (13.68)21 (12.80)0.789
Ascites28 (8.50)13 (7.93)0.825
Hepatorenal syndrome20 (6.08)11 (6.71)0.787
Vasopressors88 (26.75)79 (48.17)< 0.001a
HBeAg (+)35 (10.64)15 (9.15)0.605
Mechanical ventilation18 (5.47)36 (21.95)< 0.001a
Biochemical parameters
ALT, IU/L22.00 (16.00-40.75)29.00 (20.00-52.50)< 0.001a
AST, IU/L44.00 (31.00-90.50)39.00 (28.00-74.00)0.085
GGT, IU/L27.00 (15.00-74.50)29.00 (14.00-79.50)0.982
ALP, IU/L73.70 (55.00-112.00)82.50 (56.25-138.75)0.037a
Serum sodium, mmol/L138.10 (135.00-141.00)137.85 (134.03-140.98)0.329
Creatinine, μmol/L72.70 (59.35-93.20)79.70 (63.55-115.00)0.006a
INR1.32 (1.21-1.54)1.45 (1.24-1.74)< 0.001a
Bilirubin, μmol/L24.70 (15.80-42.80)26.85 (16.03-58.25)0.157
WBC, 10 × 9/L6.39 (3.94-9.61)6.81 (4.11-11.13)0.11
Platelet, 10 × 9/L74.50 (47.50-111.50)73.80 (39.00-109.50)0.245
PT, s15.00 (13.80-17.20)15.90 (13.40-19.20)0.086
MAP, mmHg83.00 (77.67-89.33)82.17 (78.00-87.67)0.472
PO2/FiO2402.86 ± 118.57388.28 ± 137.360.266
Albumin, g/L28.41 ± 7.8727.64 ± 6.180.256
CTP score8 (7-10)9 (7-11)0.001a
MELD score9.44 (5.96-13.52)12.20 (7.77-16.67)< 0.001a
Mortality, n (%)
28 d41 (12.46)47 (28.66)< 0.001a
3 mo65 (19.76)69 (42.07)< 0.001a
6 mo75 (22.80)73 (44.51)< 0.001a
Table 2 Univariate and multivariate Cox regression analyses in decompensated liver cirrhosis patients from the derivation cohort (n = 329)
Univariate analysis
Multivariate analysis

HR (95%CI)
P value
HR (95%CI)
P value
Age1.021 (1.001-1.040) 0.037a1.028 (1.007-1.050)0.009a
Male sex1.133 (0.653-1.967) 0.657
Vasopressors
NoReference
Yes1.643 (1.027-2.628) 0.038a
HBeAg
negativeReference
positive0.692 (0.301-1.594) 0.387
Mechanical ventilation
NoReference
Yes9.916 (5.486-17.922)< 0.001a4.200 (1.975-8.932)< 0.001a
ALT1.001 (1.000-1.002)< 0.001a
AST1.001 (1.000-1.001)< 0.001a
GGT1.001 (1.000-1.002)0.090a
ALP1.002 (1.001-1.003)< 0.001a
Serum sodium1.003 (0.982-1.026)0.761
WBC1.052 (1.030-1.073)< 0.001a
Platelet1.002 (0.999-1.004)0.259
MAP0.976 (0.967-0.996)0.019a0.979 (0.960-0.998)0.031a
PO2/FiO20.996 (0.994-0.998)< 0.001a0.998 (0.995-1.000)0.038a
CTP score1.332 (1.214-1.462)< 0.001a
MELD score1.142 (1.107-1.178)< 0.001a1.080 (1.030-1.132)0.002a
Table 3 The validation of the nomogram versus two scores by net reclassification index and integrated discrimination improvement index
IndexDerivation cohort
Validation cohort

Estimate
95%CI
P value
Estimate
95%CI
P value
NRI versus CTP
For 28-d mortality0.4190.192-0.606< 0.001a0.3950.061-0.6620.020a
For 3-mo mortality0.3550.134-0.4880.007a0.2410.005-0.4900.040a
For 6-mo mortality0.3190.081-0.481< 0.001a0.2270.120-0.480< 0.001a
NRI vs MELD
For 28-d mortality0.3950.214-0.548< 0.001a0.5780.364-0.740< 0.001a
For 3-mo mortality0.3050.080-0.4170.013a0.3880.233-0.547< 0.001a
For 6-mo mortality0.2810.077-0.4020.007a0.3580.249-0.527< 0.001a
IDI vs CTP
For 28-d mortality0.2620.181-0.394< 0.001a0.2530.095-0.426< 0.001a
For 3-mo mortality0.1930.118-0.285< 0.001a0.1670.040-0.3080.020a
For 6-mo mortality0.1780.098-0.270< 0.001a0.1520.013-0.294< 0.001a
IDI vs MELD
For 28-d mortality0.1330.070-0.247< 0.001a0.3220.195-0.473< 0.001a
For 3-mo mortality0.0810.026-0.151< 0.001a0.2200.122-0.343< 0.001a
For 6-mo mortality0.0640.023-0.133< 0.001a0.2120.132-0.298< 0.001a