Risk factors for hepatocellular carcinoma: an umbrella review of systematic review and meta-analysis
Abstract
Abstract Background Numerous meta-analyses have identified various risk factors for hepatocellular carcinoma (HCC), prompting a comprehensive study to synthesize evidence quality and strength. Methods This umbrella review of meta-analyses was conducted throughout PubMed, EMBASE, Web of Science, and Cochrane Database of Systematic Reviews. Evidence strength was evaluated according to the evidence categories criteria. Results We identified 101 risk factors throughout 175 meta-analyses. 31 risk factors were classified as evidence levels of class I, II, or III. HBV and HCV infections increase HCC risk by 12.5-fold and 11.2-fold, respectively. These risks are moderated by antiviral treatments and virological responses but are exacerbated by higher HBsAg levels, anti-HBc positivity, and co-infection. Smoking, obesity, non-alcoholic fatty liver disease, diabetes, low platelet, elevated liver enzymes and liver fluke infection increase HCC risk, while coffee consumption, a healthy diet, and bariatric surgery lower it. Medications like metformin, glucagon-like peptide-1 receptor agonists (GLP-1 RAs), aspirin, statins, and selective serotonin reuptake inhibitors reduce HCC risk, while acid suppressive agents, particularly proton pump inhibitors, elevate it. Blood type O reduces the risk of HCC, while male gender and older age increase the risk. Conclusions HBV and HCV are major HCC risk factors, with risk mitigation through antiviral treatments. Lifestyle habits such as smoking and…
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Evidence Hub reads this as a meta-analysis. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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