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A recent study reported that patients with severe COVID-19 were more likely to have non-alcoholic fatty liver disease (NAFLD) compared with those with non-severe COVID-19 illness.1 However, the prognosis of NAFLD (recently renamed metabolic dysfunction-associated fatty liver disease (MAFLD)2) is determined by the severity of liver fibrosis.3 4 We therefore postulated that patients with MAFLD with increased non-invasive liver fibrosis scores are at higher risk of severe illness from COVID-19.
We studied 310 patients with laboratory-confirmed COVID-19 who were consecutively hospitalised at four sites in Zhejiang Province, China, between January and February 2020. Some of these patients (n=150) have been included in a prior study examining the association between obesity and COVID-19 severity.5 Patients with viral hepatitis, excessive alcohol consumption, chronic pulmonary diseases or active cancers were excluded. Clinical and laboratory data were collected at hospital admission. All patients were screened for hepatic steatosis by computed tomography and subsequently diagnosed as MAFLD.6 The originally validated cut-points for fibrosis-4 (FIB-4) index and NAFLD fibrosis score (NFS) were used to categorise liver fibrosis probability …
Footnotes
Correction notice This article has been corrected since it published Online First. A second corresponding author has been added.
Contributors Concept and design: M-HZ. Acquisition of data: X-BW, H-dY, Q-FS, K-HP, KIZ and Y-PC. Analysis and interpretation of data: GT and AM. Drafting of the manuscript: GT. Critical revision of the manuscript for important intellectual content: AM, CDB, ME and JG. Study supervision: M-HZ
Funding M-HZ is supported by grants from the National Natural Science Foundation of China (81500665). CDB is supported in part by the Southampton NIHR Biomedical Research Centre (IS-BRC-20004), UK. GT is supported in part by grants from the School of Medicine, University of Verona, Verona, Italy.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; externally peer reviewed.