title: Translation and validation of International Restless Leg Syndrome Study Group rating scale in Hindi language.
abstract: OBJECTIVE
  The objective of this study is to translate and validate the International Restless Leg Syndrome Study Group rating scale (IRLS) in Hindi language.
  
  
  METHODS
  Thirty one consecutive patients diagnosed of Restless Leg Syndrome (RLS) were included in the study. Control group comprised of 31 subjects not having any symptom of RLS. The scale was procured from MAPI research trust; and, permission for the translation was sought. The translation was done according to the guidelines provided by the publisher. After translation, final version of the scale was applied in both the groups to find out the reliability and clinical validity.
  
  
  RESULTS
  RLS group had a predominance of females, and they were younger than the male counterparts (Age=36.80 ± 10.46 years vs 45.18 ± 8.34 years; t=2.28; P=0.03). There was no difference in the mean age between groups (RLS=39.77 ± 10.44 years vs Non RLS=38.29 ± 11.29 years; t=-0.53; P=0.59). IRLS scores were significantly different between both groups on all items (P<0.001). Translated version showed high reliability (Cronbach's alpha=0.86). IRLS scores were significantly different between both groups on all items (P<0.001).
  
  
  CONCLUSIONS
  Hindi version of IRLS is reliable and a clinically valid tool that can be applied in Hindi speaking population.
authors.affiliation: Department of Psychiatry, Sleep Clinic, Himalayan Institute of Medical Sciences, Swami Ram Nagar, Doiwala, Dehradun, India.
authors.forename: Ravi
authors.initials: R
authors.lastname: Gupta
authors.forename: Vivekananda
authors.initials: V
authors.lastname: Lahan
authors.forename: Deepak
authors.initials: D
authors.lastname: Goel