title: The Loughborough Occupational Impact of Sleep Scale (LOISS): a new instrument for research and clinical practice.
abstract: Despite the emphasis placed on occupational impairment as a consequence of most sleep disorders, there is currently no standardized measure for quantifying the occupational impact of sleep quality at the individual level. Using existing scales, a comprehensive literature review, and focus groups to generate items, as well as psychometric analyses to reduce items, these analyses describe the development of a scale to assess workplace performance in relation to sleep quality. In a survey of 222 employees aged 20 to 64 years, the resulting 19-item instrument (the Loughborough Occupational Impact of Sleep Scale [LOISS]) showed satisfactory levels of reliability, effective discrimination between "good" and "poor" sleepers, and an interpretable 2-factor structure. LOISS provides a practical tool for population screening and clinical assessment.
authors: Sleep Research Centre, School of Sport, Exercise, and Health Sciences, Loughborough University, England. e.kucharczyk@lboro.ac.uk
authors: Erica
authors: E
authors: Kucharczyk
authors: Kevin
authors: K
authors: Morgan
authors: Beverley
authors: B
authors: David
authors: Andrew
authors: A
authors: Hall
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D015203:Reproducibility of Results; D012890:Sleep; D012893:Sleep Wake Disorders / Q000523:psychology*; D011795:Surveys and Questionnaires; D017132:Workplace / Q000523:psychology*