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. 2016 Sep 28;22(36):8187-93.
doi: 10.3748/wjg.v22.i36.8187.

Etiology of chronic liver diseases in the Northwest of Italy, 1998 through 2014

Giorgio Maria Saracco  1 , Andrea Evangelista  1 , Sharmila Fagoonee  1 , Giovannino Ciccone  1 , Elisabetta Bugianesi  1 , Gian Paolo Caviglia  1 , Maria Lorena Abate  1 , Mario Rizzetto  1 , Rinaldo Pellicano  1 , Antonina Smedile  1
Affiliations

Etiology of chronic liver diseases in the Northwest of Italy, 1998 through 2014

Giorgio Maria Saracco et al. World J Gastroenterol. .

Abstract

Aim: To assess the etiology of chronic liver diseases (CLD) from 1998 to 2014 at the outpatient clinic of Gastroenterology of the main hospital in Northwest of Italy among those dedicated to hepatology.

Methods: A random sample of charts of patients referred to for increased liver enzymes between January 1998 and December 2006, and between January 2012 and December 2014 were reviewed. Etiology search included testing for hepatitis B virus (HBV), hepatitis C virus (HCV), autoimmune hepatitis, primary biliary cirrhosis, Wilson's disease and hereditary hemocromatosis. A risky alcohol consumption was also considered. Non-alcoholic fatty liver disease (NAFLD) was diagnosed in patients with histological and/or ultrasound evidence of steatosis/steatohepatitis, and without other causes of CLD.

Results: The number of patients included was 1163. Of them, 528 (45%) had positivity for HCV and 85 (7%) for HBV. Among the virus-free patients, 417 (36%) had metabolic disorders whereas the remaining had history of alcohol abuse, less prevalent causes of CLD or concomitant conditions. In comparison to 1998-2000 (41%), a reduction of HCV alone-related cases was detected during the periods 2001-2003 (35%, OR = 0.75, 95%CI: 0.53-1.06), 2004-2006 (33%, OR = 0.70, 95%CI: 0.50-0.97) and 2012-2014 (31%, OR = 0.64, 95%CI: 0.46-0.91). On the contrary, in comparison to 1998-2000 (31%), metabolic-alone disorders increased in the period 2004-2006 (39%, OR = 1.37, 95%CI: 0.99-1.91) and 2012-2014 (41%, OR = 1.53, 95%CI: 1.09-2.16). The other etiologies remained stable. The increase of incidence of metabolic-alone etiology during the period 2004-2006 and 2012-2014 tended to be higher in older patients (≥ 50 years) compared to younger (P = 0.058).

Conclusion: In the Northwest of Italy, during this study period, the prevalence of HCV infection decreased notably whereas that of NAFLD increased.

Keywords: Chronic liver diseases; Cirrhosis; Hepatitis B virus; Hepatitis C virus; Nonalcoholic steatohepatitis.

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Conflict of interest statement

Conflict-of-interest statement: None to declare.

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