Abstract
This study investigated whether an association exists between irritable bowel syndrome (IBS) and the risk of Parkinson’s disease. This is a retrospective cohort study using the dataset of the Taiwan National Health Insurance Program from 2000 to 2010. We identified 23,875 patients (aged 20 years or older) with newly diagnosed IBS as the IBS group and 95,500 subjects without IBS as the non-IBS group for comparison. The main outcome was incident Parkinson’s disease compared between both groups by the end of 2010. We measured the hazard ratio (HR) to evaluate the association between IBS and Parkinson’s disease. The overall incidence of Parkinson’s disease in the IBS group was 1.76-fold higher than that in the non-IBS group (16.4 vs. 9.33 per 10,000 person-years). The multivariable Cox proportional hazards regression analysis revealed that the adjusted HR of Parkinson’s disease associated with IBS was 1.48 (95 % CI 1.27, 1.72), compared with the non-IBS group. Age, women, hypertension, dementia, cerebrovascular disease and depression were also significantly associated with Parkinson’s disease. Patients with irritable bowel syndrome are at an increased risk of developing Parkinson’s disease. Further studies are required to explore the pathophysiological connection between these disorders.
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Acknowledgments
The authors thank the National Health Research Institute in Taiwan for providing the insurance claims data. This study was supported in part by Taiwan Department of Health Clinical Trial and Research Center of Excellence (DOH102-TD-B-111-004) and China Medical University Hospital (Grant Number 1MS1). The funding agency did not influence the study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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The authors disclose no conflicts of interest.
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Shih-Wei Lai and Kuan-Fu Liao have contributed equally to this study.
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Lai, SW., Liao, KF., Lin, CL. et al. Irritable bowel syndrome correlates with increased risk of Parkinson’s disease in Taiwan. Eur J Epidemiol 29, 57–62 (2014). https://doi.org/10.1007/s10654-014-9878-3
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DOI: https://doi.org/10.1007/s10654-014-9878-3