Prevalence of restless legs syndrome among medical students and the effect of disease on academic performance

Abstract

Aim: To investigate the prevalence of Restless Legs Syndrome (RLS) and the effect of RLS on academic performance among medicalschool students.Material and Methods: Second and 3rd grade medical students were included in the study. A total of 171 students were asked tocomplete the questionnaires. Demographic data and sleep habits of the students were recorded. RLS was diagnosed according tothe questionnaire results. The RLS severity and frequency are evaluated according to the International Restless Legs SyndromeStudy Group (IRLSSG) Questionnaire results. Epworth Sleepiness Scale (ESS) scores were also noted.Results: RLS was found in 17 (9.9%) of the students. Thirteen of the students with RLS were female (76.5%). The median gradepoint average (GPA) of students who had RLS (CC [60-64]) was significantly lower than those of other students (BB [70-79]) (p =0.02). There was no statistically significant difference between the disease severity and GPA of the students with RLS (p = 0.516).The median GPA scores were lower in patients with a higher frequency of complaints (p = 0.045). When the GPA of students withRLS were compared in terms of the of the ESS scores, the median GPA of the students who had excessive daytime sleepiness wassignificantly lower (p = 0.038).Conclusion: The worse academic performance of the students with RLS was more related with frequency of RLS symptoms ratherthan severity of symptoms. The cognitive impairment underlying worse academic performance was probably due to insomniarelated chronic sleep deprivation secondary to RLS.