External validation and comparison of six prognostic models in a prospective cohort of HBV-ACLF in China
Journal Title: Annals of Hepatology - Year 2016, Vol 15, Issue 2
Abstract
Background. Acute-on-chronic liver failure has high mortality. Currently, robust models for predicting the outcome of hepatitis B virus (HBV)-associated ACLF are lacking. Aim. To assess and compare the performance of six prevalent models for short- and longterm prognosis in patients with HBV-ACLF. Material and methods. The model for end-stage liver disease (MELD), MELDsodium (MELD-Na), MELD to sodium ratio (MESO), integrated MELD, Child-Turcotte-Pugh (CTP), and modified CTP (mCTP) werevalidated in a prospective cohort of 232 HBV-ACLF patients. The six models were evaluated by determining discrimination, calibration and overall performance at 3 months and 5 years. Results. According to the Hosmer-Lemeshow tests and calibration plots, all models could adequately describe the data except CTP at 3 months. Discrimination analysis showed that the iMELD score had the highest AUC of 0.76 with sensitivity of 62.6% and specificity of 80.2% for an optimal cut-off value of 52 at 3 months. It also had the highest AUC of 0.80 with sensitivity of 89.9% and specificity of 48.2% for an optimal cut-off value of 43 at 5 years. The overall performance of iMELD, assessed with Nagelkerke’s R2 and the Brier score, was also the best among the six models. Conclusion. Integrated MELD may be the best model to predict short- and long-term prognosis in patients with HBV-ACLF.
Authors and Affiliations
Yi Shen, Yan-Mei Liu, Bin Wang, Yong-Gen Zhu, Yuan-Yuan Wang, Xu-Lin Wang, Ju-Ling Ji, Jian-Guo Shao, Yan Qin, Gang Qin
Keywords
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