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Title: Hepatitis C virus infection and risk of Parkinson's disease: A systematic review and meta-analysis
Authors: Karn Wijarnpreecha
Supavit Chesdachai
Veeravich Jaruvongvanich
Patompong Ungprasert
University of Hawaii at Manoa
Faculty of Medicine, Siriraj Hospital, Mahidol University
Mayo Clinic
Bassett Medical Center
Faculty of Medicine Ramathibodi Hospital
Keywords: Medicine
Issue Date: 1-Jan-2018
Citation: European Journal of Gastroenterology and Hepatology. Vol.30, No.1 (2018), 9-13
Abstract: © 2018 Lippincott Williams and Wilkins. All rights reserved. Background/objective Hepatitis C virus (HCV) infection is one of the most common infections worldwide. Recent epidemiologic studies have suggested that patients with HCV infection might be at an increased risk of Parkinson's disease. However, the data on this relationship remain inconclusive. This meta-analysis was conducted with the aim to summarize all available evidence. Patients and methods A literature search was performed using MEDLINE and EMBASE database from inception to May 2017. Studies that reported relative risks, odd ratios (ORs), or hazard ratios comparing the risk of Parkinson's disease among HCVinfected patients versus participants without HCV infection were included. Pooled OR and 95% confidence interval were calculated using a random-effect, generic inverse variance method. Results Of 468 studies, five studies with 323 974 participants met our eligibility criteria and were included in the analysis. We found a higher risk of Parkinson's disease among patients with chronic HCV infection compared with participants without HCV infection with the pooled OR of 1.35 (95% confidence interval: 1.19-1.52). The statistical heterogeneity of this study was insignificant (I2= 3%). The main limitation of this meta-analysis was the limited accuracy of diagnosis in the primary studies as they were coding-based studies. Conclusion This study demonstrated a higher risk of Parkinson's disease among HCV-infected patients. Further studies are required to clarify how this risk should be addressed in the clinical picture.
ISSN: 14735687
Appears in Collections:Scopus 2018

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