title: Effect of brief sleep hygiene education for workers of an information technology company.
abstract: To investigate the effects of sleep hygiene education for workers of an information technology (IT) company, we conducted a controlled clinical trial providing 581 workers one-hour sleep hygiene education. The contents of the sleep hygiene education program were a review of sleep habits, provide sleep hygiene education, and the establishment of sleep habit goals. A self-report questionnaire was used to measure outcomes including the Pittsburgh Sleep Quality Index (PSQI), Karolinska Sleepiness Scale (KSS), Checklist Individual Strength (CIS), Center for Epidemiologic Studies for Depression (CES-D), and mean sleep duration on weekdays before and 4 wk after the intervention. A total of 391 participants were included in the analysis, with 214 participants in the sleep hygiene education group and 177 in the waiting list group. KSS score at 2 P.M. decreased by 0.42 points in the sleep hygiene education group, but increased by 0.08 points in the waiting list group, showing a significant effect size of 0.50 (95%CI, -0.97 to -0.04, p<0.05). PSQI score also improved, but the inter-group difference was not statically significant. The present study provides preliminary evidence that brief sleep hygiene education may improve afternoon sleepiness at work, but not sleep at night for IT workers.
authors.affiliation: Department of Occupational Mental Health, Graduate School of Medical Science Kitasato University, Sagamihara, Kanagawa, Japan. m-kakinuma@jreast.co.jp
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Kakinuma
authors.forename: Masaya
authors.initials: M
authors.lastname: Takahashi
authors.forename: Noritada
authors.initials: N
authors.lastname: Kato
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Aratake
authors.forename: Mayumi
authors.initials: M
authors.lastname: Watanabe
authors.forename: Yumi
authors.initials: Y
authors.lastname: Ishikawa
authors.forename: Reiko
authors.initials: R
authors.lastname: Kojima
authors.forename: Michi
authors.initials: M
authors.lastname: Shibaoka
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Tanaka
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D057189:Checklist; D016001:Confidence Intervals; D003863:Depression / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D020920:Dyssomnias / Q000150:complications / Q000453:epidemiology* / Q000523:psychology; D005260:Female; D006266:Health Education; D007722:Health Knowledge, Attitudes, Practice; D006305:Health Status Indicators; D006801:Humans; D007256:Information Systems / Q000706:statistics & numerical data; D008019:Life Style; D008297:Male; D016272:Occupational Health; D011594:Psychometrics; D057566:Self Report; D011795:Surveys and Questionnaires; D013997:Time Factors; D014041:Tokyo; D014851:Wakefulness