Document Type : Original Article
Authors
Department of Neurology, Pushpagiri Institute of Medical Sciences and Research Center, Thiruvalla, Kerala, India
Abstract
Background: The etiological factors leading to progressive supranuclear palsy (PSP) are poorly understood. This study aims to evaluate the role of various risk factors in patients with PSP.
Methods: A case-control study was conducted over a period of two years from March 2016 to March 2018. The cases were recruited independently by two senior neurologists and a consensus was then reached after discussion for their inclusion. The controls were free of parkinsonian features or dementia and matched by age (± 3 years), sex, and race with the cases. The study population was then interviewed using a standard questionnaire for various possible risk factors. Variables with a significance (P ≤ 0.05) in univariate analysis were considered for bivariate analysis, multivariate analysis, and logistic-regression analysis.
Results: A total of 51 cases with an equal number of controls were included in this study. Ten separate variables that included poor educational status, well water, smoking, tapioca, bakery/fast food, tea ≥ 5 cups/day, personality, exposure to pets, exposure to cattle, and family history of stroke were found to show statistical significance after univariate analysis. Among these, tapioca consumption, fast food and bakery items consumption, type A personality, and family history of stroke were found significant after adjusting for the confounding factors.
Conclusion: The possible etiological factors that have a relevance in the causation of PSP as borne out in our study include dietary habits such as tapioca, fast food, and bakery items consumption, family history of stroke, and type A personality trait.
Keywords
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