Lipids & metabolic liver disease

High Prevalence of Nonalcoholic Steatohepatitis (NASH) and Advanced Fibrosis in Type 2 Diabetes: A Prospective Study of 330 Outpatients Undergoing Liver Biopsies for Elevated ALT, Using a Low Threshold

Diabetes CarePublished Prospective cohort study

Authors' conclusion

Despite the use of a low ALT threshold, prevalence of NASH (58%) or AF (38%) was high. Routinely available data had a high yield in identifying patients with T2DM with AF and/or NASH requiring further liver assessment.

Study context

Population
Outpatients with T2D screened for NAFLD per ADA criteria in four diabetology clinics, referred to hepatologists; liver biopsy proposed for ALT persistently >20 IU/L (women) or >30 IU/L (men) without other liver disease; median age 59 years, 63% male, median BMI 32, median HbA1c 7.5%330 adequate biopsies
Participants
713 outpatients
Outcome
Prevalence on liver biopsy
Methodological detailsmulticenter, Liver biopsies performed in 360 patients; 330 adequate after central review
  • Multicenter
  • Liver biopsies performed in 360 patients; 330 adequate after central review

Main finding

As reported in the abstract

NASH prevalence

58%

Advanced fibrosis prevalence

38%

Cirrhosis prevalence

10%

Observational data: associations, not effects.

Further findings

Associations of liver lesions

Liver lesions independently associated with metabolic syndrome components but not with micro- and macrovascular complications of T2D

Prediction of advanced fibrosis by models on routine data with or without VCTE

AUROC with VCTE
0.84
AUROC without VCTE
0.77
Correctly classified with VCTE
59%
Correctly classified without VCTE
45%

Prediction of NASH by models on routine data with or without VCTE

AUROC with VCTE
0.82
AUROC without VCTE
0.81
Correctly classified with VCTE
44%
Correctly classified without VCTE
42%

Original publication

High Prevalence of NASH and Advanced Fibrosis in Type 2 Diabetes: A Prospective Study of 330 Outpatients Undergoing Liver Biopsies for Elevated ALT, Using a Low Threshold. Diabetes Care. Published 12 April 2023. doi:10.2337/dc22-2048

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