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Quantitative HBcrAg and HBcAb versus HBsAg and HBV DNA in predicting liver fibrosis levels of chronic hepatitis B patientsHBcrAg y HBcAb cuantitativos versus HBsAg y ADN del VHB en la predicción de los niveles de fibrosis hepática de los pacientes con hepatitis B crónica
Author links open overlay panelZhan-qingZhanga
Bi-shengShibWeiLuaDan-pingLiuaDanHuangaYan-lingFengc
https://doi.org/10.1016/j.gastrohep.2020.03.017
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Abstract
Objective
To evaluate the performance of the quantitative markers of hepatitis B core-related antigen (HBcrAg) and anti-hepatitis B core antigen antibodies HbcAb versus hepatitis B surface antigen (HBsAg) and hepatitis B virus DNA (HBV DNA) in predicting liver fibrosis levels in chronic hepatitis B patients.
Methods
Two hundred and fifty hepatitis B e antigen (HBeAg)-positive and 245 HBeAg-negative patients were enrolled. With reference to the Scheuer standard, stage 2 or higher and stage 4 liver disease were defined as significant fibrosis and cirrhosis, respectively. A receiver operating characteristic (ROC) curve was used to evaluate the performance of the HBV markers investigated.
Results
The areas under the ROC curves (AUCs) of HBcrAg in predicting significant fibrosis and cirrhosis in HBeAg-positive patients (0.577 and 0.700) were both close to those of HBsAg (0.617 and 0.762) (both P > 0.05). In HBeAg-negative patients (0.797 and 0.837), they were both significantly greater than those of HBV DNA (0.723 and 0.738) (P = 0.0090 and P = 0.0079). The AUCs of HBcAb in predicting significant fibrosis and cirrhosis in HBeAg-positive patients (0.640 and 0.665) were both close to those of HBsAg. In HBeAg-negative patients (0.570 and 0.621), they were both significantly less than those of HBcrAg (P < 0.0001 and P = 0.0001). Specificity in predicting significant fibrosis and sensitivity in predicting cirrhosis in HBeAg-positive patients, using a single cut-off of HBsAg ≤5,000 IU/ml, were 76.5% and 72.7%, respectively. In HBeAg-negative patients, using a single cut-off of HBcrAg >80kU/ml, they were 85.9% and 81.3%, respectively.
Conclusions
HBsAg has good performance in predicting liver fibrosis levels in HBeAg-positive and HBeAg-negative patients, and HBcrAg has very good performance in predicting liver fibrosis levels in HBeAg-negative patients.
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