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Table 2 Demographic data in individual sub-groups

From: Validation of the REM sleep behavior disorder screening questionnaire in the Czech population

  Age (y) Males
Sub-group n Mean ± SD (% of n)
iRBD 81 61.2 ± 8.3 89
Healthy volunteers 20 45.2 ± 15.2 40
Insomnia 63 44.5 ± 17.3 44
OSA 52 57.2 ± 15.4 69
RLS/PLMS 38 53.6 ± 17.5 61
Non-RBD parasomnia 22 46.2 ± 16.2 55
Narcolepsy/hypersomnia 29 35.2 ± 12.4 48
  1. Abbreviations: OSA Obstructive sleep apnea, RBD Rapid eye movement sleep behavior disorder, RLS/PLMS Restless legs syndrome and periodic limb movements in sleep