Abstract
We investigated the association of Bell's palsy (BP) with the subsequent risk of Parkinson's disease (PD) using a case-control study design. We matched 196 incident cases of PD in Olmsted County, MN, to 196 general population controls with same age (±1 year) and sex, and we reviewed the complete medical records of cases and controls in a medical records-linkage system to detect BP. Six of the 196 patients with PD and none of the 196 controls were diagnosed with BP before PD (exact binomial probability, P = 0.02). The median age at occurrence of BP was 49.5 years (range, 15-84 years) and the median time between BP and the onset of PD was 27.5 years (range, 2-54 years). The findings were similar using a standardized incidence ratio (SIR) approach, but were not statistically significant. This initial association between BP and PD awaits replication.
Original language | English (US) |
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Pages (from-to) | 1530-1533 |
Number of pages | 4 |
Journal | Movement Disorders |
Volume | 24 |
Issue number | 10 |
DOIs | |
State | Published - Jul 30 2009 |
Keywords
- Bell's palsy
- Case-control study
- Parkinson's disease
- Risk factors
ASJC Scopus subject areas
- Neurology
- Clinical Neurology