biostudies-literatureUnknown35(12)Barger LK<h4>Study objective</h4>At least 15% of the full-time work force is shift workers. Working during the overnight hours, early morning start times, and variable or rotating schedules present a challenge to the circadian system, and these shifts are associated with adverse health and safety consequences. Shift work disorder (SWD), a primary (circadian rhythm) sleep disorder indicated by excessive daytime sleepiness and/or insomnia associated with a shiftwork schedule, is under-recognized by primary care physicians. We sought to develop and validate a questionnaire to screen for high risk of SWD in a shift working population.<h4>Design</h4>Shift workers completed a 26-item questionnaire and were evaluated by a sleep specialist (physician) who diagnosed them as either positive or negative for SWD. The physician assessment of SWD was guided by a flow chart that operationalized the ICSD-2 criteria for SWD.<h4>Setting</h4>18 sleep clinics in the USA.<h4>Patients or participants</h4>311 shift workers.<h4>Interventions</h4>Not applicable.<h4>Measurements and results</h4>Responses to the items in the questionnaire were entered into a series of discrimination function analyses to determine the diagnostic value of the items and the fewest number of questions with the best predictive value. The function was then cross-validated. A final 4-item questionnaire has 89% positive predictive value and 62% negative predictive value (sensitivity = 0.74; specificity = 0.82).<h4>Conclusions</h4>This Shiftwork Disorder Screening Questionnaire may be appropriate for use in primary care settings to aid in the diagnosis of SWD.Sleep1693-703https://www.ebi.ac.uk/biostudies/studies/S-EPMC3490362biostudies-literatureValidation of a questionnaire to screen for shift work disorder.PMC3490362Drake CLRajaratnam SMNg KTBarger LKOgeil RPO'Brien CSfalseValidation of a questionnaire to screen for shift work disorder.<h4>Study objective</h4>At least 15% of the full-time work force is shift workers. Working during the overnight hours, early morning start times, and variable or rotating schedules present a challenge to the circadian system, and these shifts are associated with adverse health and safety consequences. Shift work disorder (SWD), a primary (circadian rhythm) sleep disorder indicated by excessive daytime sleepiness and/or insomnia associated with a shiftwork schedule, is under-recognized by primary care physicians. We sought to develop and validate a questionnaire to screen for high risk of SWD in a shift working population.<h4>Design</h4>Shift workers completed a 26-item questionnaire and were evaluated by a sleep specialist (physician) who diagnosed them as either positive or negative for SWD. The physician assessment of SWD was guided by a flow chart that operationalized the ICSD-2 criteria for SWD.<h4>Setting</h4>18 sleep clinics in the USA.<h4>Patients or participants</h4>311 shift workers.<h4>Interventions</h4>Not applicable.<h4>Measurements and results</h4>Responses to the items in the questionnaire were entered into a series of discrimination function analyses to determine the diagnostic value of the items and the fewest number of questions with the best predictive value. The function was then cross-validated. A final 4-item questionnaire has 89% positive predictive value and 62% negative predictive value (sensitivity = 0.74; specificity = 0.82).<h4>Conclusions</h4>This Shiftwork Disorder Screening Questionnaire may be appropriate for use in primary care settings to aid in the diagnosis of SWD.2012-01-01T00:00:00Z2012 Dec2021-02-21T01:47:13Z2019-03-27T01:00:01ZS-EPMC34903622320461210.5665/sleep.2246