Journal
EUROPEAN JOURNAL OF NEUROLOGY
Volume 22, Issue 6, Pages 1018-1021Publisher
WILEY-BLACKWELL
DOI: 10.1111/ene.12409
Keywords
case-control; multiple sclerosis; prevalence; restless legs syndrome
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Background and purposeA population-based case-control study in the city of Catania, Sicily, was carried out to determine restless legs syndrome (RLS) prevalence and its association with multiple sclerosis (MS). MethodsPatients were randomly selected from a cohort of MS patients resident in the study area and a group of age and sex matched controls was enrolled from the general population. RLS was diagnosed according to the International Restless Legs Syndrome Study Group criteria. ResultsIn total, 152 MS patients and 431 controls were included in the study. A significantly higher prevalence of RLS amongst MS patients (14.5%) compared with controls (6.0%) was detected, corresponding to an almost threefold increased risk (odds ratio 2.7, 95% confidence interval 1.4-5.0) of developing RLS. Spinal cord lesions in MS patients were associated with a higher risk of RLS (odds ratio 3.7, 95% confidence interval 1.1-13.5). ConclusionRLS was strongly associated with MS, with a significantly higher risk in patients presenting spinal cord lesions.
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