Abstract
Objective: Previous studies reported that individuals with Parkinson’s disease are less likely to have smoking history and it seems that nicotine has a neuroprotective effect. The authors have conducted a casecontrol retrospective study to determine if there is an association between cigarette smoking and Parkinson’s disease.
Methods: In a matched case-control study, 92 individuals with Parkinson’s disease (71 men, 21 women; mean age: 67.3±11 year) were compared to 184 people without such a diagnosis. (144 men, 40 women; mean age: 65.7±12.3 year).
Results: Nineteen patients in the group with a diagnosis of Parkinson’s disease (20.6%) were smoker. In the control group, however, there were 103 smokers. Also, we found a dose-response correlation between amount of smoking and higher risk of having Parkinson’s diseas.
Conclusion: Consistent with the results of previous studies, we found that individuals with Parkinson’s disease are significantly less likely to have smoked regularly than those without Parkinson’s disease.
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© 2008, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.