Abstract
Background and Objectives: Non-invasive methods for evaluating liver fibrosis have been a crucial focus of clinical research. The aim of the current study is to assess the accuracy of serum alpha-fetoprotein (AFP) in determining the stage of liver fibrosis in patients with chronic hepatitis B (CHB) who are positive for HBeAg. Materials and Methods: The current study included a total of 276 HBeAg-positive CHB patients who underwent liver biopsy. The levels of serum AFP were measured in these patients using electrochemiluminescence immunoassays. The correlations between serum AFP levels and other laboratory parameters were analyzed using Spearman's correlation analysis. Binary logistic regression analysis was performed to determine the independent associations between serum AFP levels and liver fibrosis. The diagnostic performance of serum AFP and other non-invasive markers was evaluated using receiver operating characteristic (ROC) curves. Results: A total of 59 (21.4%) patients were found to have elevated levels of serum AFP (>7 ng/mL). These patients displayed a significantly higher proportion of both advanced fibrosis and cirrhosis compared to those with normal serum AFP levels (0-7 ng/mL). The level of serum AFP was positively associated with levels of serum globulin (GLB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total bilirubin (TBIL), as well as the AST-to-platelet ratio (APRI), fibrosis-4 (FIB-4), and Scheuer's classification, and negatively correlated with platelet (PLT) counts. Furthermore, serum AFP was found to be independently associated with significant fibrosis, advanced fibrosis, and cirrhosis. The results of the ROC analysis showed that serum AFP was an effective predictor of significant fibrosis, advanced fibrosis, and cirrhosis, with an area under the receiver operating characteristic curve (AUROC) of 0.773 (95% CI: 0.721-0.821), 0.889 (95% CI: 0.847-0.923), and 0.925 (95% CI: 0.887-0.953), respectively. These values are higher than those of the APRI and FIB-4. Conclusions: Serum AFP could serve as a valuable supplemental biomarker for determining the severity of liver fibrosis in HBeAg-positive patients with chronic hepatitis B.
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