Format

Send to

Choose Destination
Parkinsonism Relat Disord. 2014 Dec;20(12):1371-5. doi: 10.1016/j.parkreldis.2014.09.026. Epub 2014 Sep 28.

Risk of Parkinson's disease following severe constipation: a nationwide population-based cohort study.

Author information

1
Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan.
2
Department of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Cardiovascular Center, National Taiwan University Hospital Yun-Lin Branch, Dou-Liou City, Yun-Lin County, Taiwan.
3
Institute of Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.
4
Department of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Institute of Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan. Electronic address: chiahsuin123@yahoo.com.tw.
5
Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan. Electronic address: robinwu@ntu.edu.tw.

Abstract

INTRODUCTION:

Constipation is a non-motor symptom of Parkinson's disease (PD). We investigated the association between the severity of constipation and subsequent risk of PD in a population-based sample.

METHODS:

551,324 participants free of PD, dementia, and stroke were retrospectively ascertained between January 1, 2005 and December 31, 2005 using the Taiwan National Health Insurance Research Database. The association between constipation at the beginning of the study and the incidence of PD was examined using a Cox regression model. Information regarding comorbidities and concomitant medications use was adjusted in the proportional hazards models.

RESULTS:

After an average follow-up of 5.5 years, 2336 incident PD cases were diagnosed. The crude incidence rate of PD per 1,000,000 person-days was 1.57 for subjects without constipation and 4.04, 5.28, and 12.67 for mild, moderate, and severe constipation, respectively. After adjusting for age, sex, comorbidities, and concomitant medication use, patients with constipation were more likely to develop PD than subjects without constipation; the adjusted hazard ratio (aHR) was 3.28 (95% CI: 2.14-5.03), 3.83 (2.51-5.84), and 4.22 (2.95-6.05) for individual constipation severity categories. Constipation severity was also associated with an increased likelihood of PD in the time-varying analysis; the aHR was 2.84 (2.43-3.33), 5.22 (4.61-5.92), and 10.47 (9.46-11.58) for mild, moderate, and severe constipation, respectively (P < 0.0001). After excluding PD patients diagnosed within 3 years of constipation, the association remained significant.

CONCLUSIONS:

Our study suggests that the severity of constipation is associated with a future diagnosis of PD in a dose-dependent manner.

KEYWORDS:

Constipation; Non-motor symptoms; Parkinson's disease; Population study; Pre-motor symptoms

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center