Lipids & metabolic liver disease

Glycated haemoglobin is a major predictor of disease severity in patients with non-alcoholic fatty liver disease (NAFLD)

Diabetes Res Clin PractPublished Cohort study with discovery and validation cohorts and analysis of paired biopsies from interventional studies

Authors' conclusion

HbA1c is highly informative in predicting NAFLD severity and contributes more than BMI. Assessments of HbA1c must be a fundamental part of the holistic assessment of patients with NAFLD and, alongside age, can be used to identify patients with highest risk of advanced disease.

Study context

Population
Patients with liver biopsy staged NAFLD, with and without T2D857 patients with biopsy-staged NAFLD
Participants
687 / 170 / 421
Comparison
HbA1c vs NAFLD histological severity
  • Discoveryn = 687
  • Validationn = 170
  • Paired biopsiesn = 421
Outcome
Relationship between HbA1c and NAFLD severity (severe steatosis, NASH, advanced fibrosis)
Methodological detailsliver biopsy staged, generalized-linear models and binomial regression
  • Liver biopsy staged
  • Generalized-linear models and binomial regression

Performance

As reported in the abstract

Risk of severe steatosis, NASH and advanced fibrosis
  • In the discovery cohort, risk of severe steatosis, non-alcoholic steatohepatitis (NASH) and advanced fibrosis correlated positively with HbA1c, after adjustment for obesity and age
  • Findings endorsed in a separate validation cohort
  • Adjusted for obesity and age

Further findings

Predictive modelling with HbA1c and age vs Fib-4

Predictive modelling using HbA1c and age was non-inferior to Fib-4; allowed HbA1c, age and BMI adjusted risk charts

Change after intervention (paired biopsies)

Reduction in HbA1c associated with improvements in steatosis and NASH after adjustment for weight change and treatment
Fibrosis change only associated with weight change and treatment

Original publication

Glycated haemoglobin is a major predictor of disease severity in patients with NAFLD. Diabetes Res Clin Pract. Published 13 August 2024. doi:10.1016/j.diabres.2024.111820

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