Shuna Myers1, Isabelle Neyroud-Caspar2, Laurent Spahr3, Konstantinos Gkouvatsos3, Evelyne Fournier2, Emiliano Giostra3, Giulia Magini3,4, Jean-Louis Frossard3, Marie-Eve Bascaron5, Nathalie Vernaz6, Lucia Zampaglione3, Francesco Negro3,7, Nicolas Goossens3,8. 1. Medical Faculty, University of Geneva, Geneva, Switzerland. 2. Geneva Cancer Registry, University of Geneva, Geneva, Switzerland. 3. Gastroenterology and Hepatology, Geneva University Hospital, Geneva, Switzerland. 4. Division of Transplantation, Geneva University Hospital, Geneva, Switzerland. 5. Division of Palliative Medicine, Department of Rehabilitation and Geriatrics, Geneva University Hospitals, University of Geneva, Geneva, Switzerland. 6. Medical Directorate, Geneva University Hospital, Geneva, Switzerland. 7. Clinical Pathology, Geneva University Hospital, Geneva, Switzerland. 8. Department of Medicine, University of Geneva, Geneva, Switzerland.
Abstract
BACKGROUND & AIMS: There are conflicting data regarding the epidemiology of hepatocellular carcinoma (HCC) arising in the context of non-alcoholic and metabolic-associated fatty liver disease (NAFLD and MAFLD). We aimed to examine the changing contribution of NAFLD and MAFLD, stratified by sex, in a well-defined geographical area and highly characterised HCC population between 1990 and 2014. METHODS: We identified all patients with HCC resident in the canton of Geneva, Switzerland, diagnosed between 1990 and 2014 from the prospective Geneva Cancer Registry and assessed aetiology-specific age-standardised incidence. NAFLD-HCC was diagnosed when other causes of liver disease were excluded in cases with type 2 diabetes, metabolic syndrome, or obesity. Criteria for MAFLD included one or more of the following criteria: overweight/obesity, presence of type 2 diabetes mellitus, or evidence of metabolic dysregulation. RESULTS: A total of 76/920 (8.3%) of patients were diagnosed with NAFLD-HCC in the canton of Geneva between 1990 and 2014. Between the time periods 1990-1994 and 2010-2014, there was a significant increase in HCC incidence in women (standardised incidence ratio [SIR] 1.83, 95% CI 1.08-3.13, p = 0.026) but not in men (SIR 1.10, 95% CI 0.85-1.43, p = 0.468). In the same timeframe, the proportion of NAFLD-HCC increased more in women (0-29%, p = 0.037) than in men (2-12%, p = 0.010) while the proportion of MAFLD increased from 21% to 68% in both sexes and from 7% to 67% in women (p <0.001). From 2000-2004 to 2010-2014, the SIR of NAFLD-HCC increased to 1.92 (95% CI 0.77-5.08) for men and 12.7 (95% CI 1.63-545) in women, whereas it decreased or remained stable for other major aetiologies of HCC. CONCLUSIONS: In a populational cohort spanning 25 years, the burden of NAFLD and MAFLD associated HCCs increased significantly, driving an increase in HCC incidence, particularly in women. LAY SUMMARY: Hepatocellular carcinoma (HCC) is the most common type of liver cancer, increasingly arising in patients with liver disease caused by metabolic syndrome, termed non-alcoholic fatty liver disease (NAFLD) or metabolic-associated fatty liver disease (MAFLD). We assessed all patients with HCC between 1990 and 2014 in the canton of Geneva (western Switzerland) and found an increase in all HCC cases in this timeframe, particularly in women. In addition, we found that HCC caused by NAFLD or MAFLD significantly increased over the years, particularly in women, possibly driving the increase in overall HCC cases.
BACKGROUND & AIMS: There are conflicting data regarding the epidemiology of hepatocellular carcinoma (HCC) arising in the context of non-alcoholic and metabolic-associated fatty liver disease (NAFLD and MAFLD). We aimed to examine the changing contribution of NAFLD and MAFLD, stratified by sex, in a well-defined geographical area and highly characterised HCC population between 1990 and 2014. METHODS: We identified all patients with HCC resident in the canton of Geneva, Switzerland, diagnosed between 1990 and 2014 from the prospective Geneva Cancer Registry and assessed aetiology-specific age-standardised incidence. NAFLD-HCC was diagnosed when other causes of liver disease were excluded in cases with type 2 diabetes, metabolic syndrome, or obesity. Criteria for MAFLD included one or more of the following criteria: overweight/obesity, presence of type 2 diabetes mellitus, or evidence of metabolic dysregulation. RESULTS: A total of 76/920 (8.3%) of patients were diagnosed with NAFLD-HCC in the canton of Geneva between 1990 and 2014. Between the time periods 1990-1994 and 2010-2014, there was a significant increase in HCC incidence in women (standardised incidence ratio [SIR] 1.83, 95% CI 1.08-3.13, p = 0.026) but not in men (SIR 1.10, 95% CI 0.85-1.43, p = 0.468). In the same timeframe, the proportion of NAFLD-HCC increased more in women (0-29%, p = 0.037) than in men (2-12%, p = 0.010) while the proportion of MAFLD increased from 21% to 68% in both sexes and from 7% to 67% in women (p <0.001). From 2000-2004 to 2010-2014, the SIR of NAFLD-HCC increased to 1.92 (95% CI 0.77-5.08) for men and 12.7 (95% CI 1.63-545) in women, whereas it decreased or remained stable for other major aetiologies of HCC. CONCLUSIONS: In a populational cohort spanning 25 years, the burden of NAFLD and MAFLD associated HCCs increased significantly, driving an increase in HCC incidence, particularly in women. LAY SUMMARY: Hepatocellular carcinoma (HCC) is the most common type of liver cancer, increasingly arising in patients with liver disease caused by metabolic syndrome, termed non-alcoholic fatty liver disease (NAFLD) or metabolic-associated fatty liver disease (MAFLD). We assessed all patients with HCC between 1990 and 2014 in the canton of Geneva (western Switzerland) and found an increase in all HCC cases in this timeframe, particularly in women. In addition, we found that HCC caused by NAFLD or MAFLD significantly increased over the years, particularly in women, possibly driving the increase in overall HCC cases.
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