KMID : 1040620210270030499
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Clinical and Molecular Hepatology 2021 Volume.27 No. 3 p.499 ~ p.509
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Serum fibrosis index-based risk score predicts hepatocellular carcinoma in untreated patients with chronic hepatitis B
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Liang Lilian Yan
Lee Hye-Won Wong Vincent Wai-Sun Yip Terry Cheuk-Fung Tse Yee-Kit Hui Vicki Wing-Ki Lui Grace Chung-Yan Chan Henry Lik-Yuen Wong Grace Lai-Hung
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Abstract
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Background/Aims: Serum fibrosis scores comprised of common laboratory tests have high utility to assess severity of liver fibrosis. We aimed to derive and validate a hepatocellular carcinoma (HCC) risk score based on serum fibrosis scores to predict HCC in treatment-naive chronic hepatitis B (CHB) patients.
Methods: Fifteen thousand one hundred eighty-seven treatment-naive adult CHB patients were identified to form the training cohort in this retrospective study. Individual fibrosis score was included to construct a new HCC prediction score. The score was externally validated in an independent treatment-naive Korean CHB cohort.
Results: 180/15,187 patients (1.2%) in training cohort and 47/4,286 patients (1.1%) in validation cohort developed HCC during a mean follow-up of 52 and 50 months, respectively. The newly developed HCC risk score, Liang score, is composed of gender, age, hepatitis B virus DNA, fibrosis-4 (FIB-4) index, and ranges from 0 to 22. Area under the time-dependent receiver operating characteristic curve of Liang score was 0.79 (95% confidence interval, 0.70?0.89). A cutoff value of nine provided an extremely high negative predictive value of 99.9% and high sensitivity of 90.0% at 5 years in the validation cohort. Patients with Liang score ¡Â9 had HCC incidence <0.2% per year in both training and validation cohorts, in whom HCC surveillance might be exempted.
Conclusion: A novel HCC risk score, Liang score, based on FIB-4 index, is applicable and accurate to identify treatment-naive CHB patients with very low risk of HCC to be exempted from HCC surveillance.
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KEYWORD
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Hepatitis B, Chronic, Carcinoma, Hepatocellular, Fibrosis, Surveillance
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