Cited by 363Liver Disease Diagnosis and TreatmentCancer Risks and FactorsAlcohol Consumption and Health Effects

Non-alcoholic fatty liver disease and increased risk of incident extrahepatic cancers: a meta-analysis of observational cohort studies

Mantovani, Alessandro, Petracca, Graziana, Beatrice, Giorgia, Csermely, Alessandro, Tilg, Herbert, Byrne, Christopher D, Targher, Giovanni·2022·Gut

Abstract

OBJECTIVE: We performed a meta-analysis of observational studies to quantify the magnitude of the association between non-alcoholic fatty liver disease (NAFLD) and risk of extrahepatic cancers. DESIGN: We systematically searched PubMed, Scopus and Web of Science databases from the inception date to 30 December 2020 using predefined keywords to identify observational cohort studies conducted in individuals, in which NAFLD was diagnosed by imaging techniques or International Classification of Diseases codes. No studies with biopsy-proven NAFLD were available for the analysis. Meta-analysis was performed using random-effects modelling. RESULTS: We included 10 cohort studies with 182 202 middle-aged individuals (24.8% with NAFLD) and 8485 incident cases of extrahepatic cancers at different sites over a median follow-up of 5.8 years. NAFLD was significantly associated with a nearly 1.5-fold to twofold increased risk of developing GI cancers (oesophagus, stomach, pancreas or colorectal cancers). Furthermore, NAFLD was associated with an approximately 1.2-fold to 1.5-fold increased risk of developing lung, breast, gynaecological or urinary system cancers. All risks were independent of age, sex, smoking, obesity, diabetes or other potential confounders. The overall heterogeneity for most of the primary pooled analyses was relatively low. Sensitivity analyses did not alter these findings. Funnel plots did not reveal any significant publication bias. CONCLUSION: This large meta-analysis suggests that NAFLD is associated with a moderately increased long-term risk of developing extrahepatic cancers over a median of nearly 6 years (especially GI cancers, breast cancer and gynaecological cancers). Further research is required to decipher the complex link between NAFLD and cancer development.

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Authors
Mantovani, A., Petracca, G., Beatrice, G., Csermely, A., Tilg, H., Byrne, C. D., & Targher, G.
Affiliations
  • University of Verona (IT)
  • Innsbruck Medical University (AT)
  • Southampton General Hospital (GB)
Corresponding author
Targher, Giovanni
Venue
Gut
Publisher
BMJ
Published
2021-03-08
Volume
71
Issue
4
Pages
778-788
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W3133993131
Cited by
363
References
47
Citations by year
2026: 52 · 2025: 75 · 2024: 99 · 2023: 75 · 2022: 47 · 2021: 15
FWCI
9.01
Type
journal article
Language
en
Open access
closed
Locations
  • Gut (publishedVersion)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (acceptedVersion)
Funders
National Institute for Health and Care Research
Topics
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Oncology › Cancer Risks and Factors
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
Keywords
non-alcoholic fatty liver disease, extrahepatic cancer, cancer risk, gastrointestinal cancer, breast cancer, gynecologic cancer, lung cancer, urinary tract cancer, pancreatic cancer, colorectal cancer, esophageal cancer
MeSH terms
Humans, Middle Aged, Neoplasms, Risk Factors, Cohort Studies, Observational Studies as Topic, Non-alcoholic Fatty Liver Disease

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