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Evaluation of sleep and daytime somnolence in spinocerebellar ataxia type 6 (SCA6)

From the Minnesota Regional Sleep Disorders Center (M.J.H., M.W.M.), Hennepin County Medical Center (M.J.H., M.W.M.); Department of Neurology (M.W.M.), University of Minnesota, Minneapolis, MN; and Department of Neurology (C.M.G.), University of Chicago, Chicago, IL.

Address correspondence and reprint requests to Dr. Christopher M. Gomez, Department of Neurology, University of Chicago, 5841 S. Maryland Avenue, MC2030, Chicago, IL 60637; e-mail: cgomez{at}neurology.bsd.uchicago.edu

To determine the frequency of subjective sleep problems in spinocerebellar ataxia type 6 (SCA6), the authors surveyed 25 patients and 25 age-matched controls with the Epworth Sleepiness Scale (ESS) and Pittsburgh Seep Quality Index (PSQI). The ESS was higher in patients with SCA6 (9.12 ± 5.80; CI: 2.28) than in controls (4.96 ± 3.01; CI: 1.18) (p = 0.003, t test). The PSQI was higher in patients with SCA6 (7.96 ± 4.65; CI: 1.86) than in controls (5.08 ± 3.39; CI: 1.36) (p = 0.018, t test).

Disclosure: The authors report no conflicts of interest.

Received August 17, 2005. Accepted in final form January 27, 2006.