Relationships between sleep efficiency and lifestyle evaluated by objective sleep assessment: SLeep Epidemiology Project at University of Tsukuba

Yu Ikeda, Emi Morita, Kei Muroi, Yo Arai, Tomohiko Ikeda, Tsukasa Takahashi, Nagisa Shiraki, Shotaro Doki, Daisuke Hori, Yuichi Oi, Shin ichiro Sasahara, Asuka Ishihara, Sumire Matsumoto, Masashi Yanagisawa, Makoto Satoh, Ichiyo Matsuzaki

Research output: Contribution to journalArticlepeer-review

Abstract

Objectively measured sleep efficiency has recently been shown to be associated with health problems. Although several factors have previously been reported to be associated with sleep efficiency, most of these studies were conducted on older or younger adults, and the factors associated with sleep efficiency in healthy workers remain unknown. The aim of this study was to investigate the relationship between sleep efficiency and lifestyle factors using sleep measurement data recorded by an activity meter worn by workers. In total, 693 workers (male, 43.6%; mean age, 42.7 ± 11.3 years) were recruited from five offices in 2017. Sleep was measured over the period of 1 week by actigraphy. Workers’ attributes, lifestyle habits, and occupational stress were identified using a questionnaire, and the association of sleep efficiency with lifestyle, occupational stress, and attributes was explored by logistic regression analysis. A logistic regression analysis using attributes and occupational stress as adjustment variables revealed that “longer sleeping hours on weekends than on weekdays” [odds ratios (OR), 0.66; 95% confidence interval (CI), 0.47–0.94], “water ingestion at bedtime” [OR, 2.09; 95% CI, 1.28–3.41], and “smartphone use at bedtime” [OR, 1.90; 95% CI, 1.28–2.83] were associated with decreased sleep efficiency. This study found that lifestyle habits were associated with sleep efficiency among workers.

Original languageEnglish (US)
Pages (from-to)554-569
Number of pages16
JournalNagoya Journal of Medical Science
Volume84
Issue number3
DOIs
StatePublished - 2022
Externally publishedYes

Keywords

  • Actigraphy
  • Lifestyle
  • Sleep
  • Sleep efficiency
  • Worker

ASJC Scopus subject areas

  • Medicine(all)

Fingerprint

Dive into the research topics of 'Relationships between sleep efficiency and lifestyle evaluated by objective sleep assessment: SLeep Epidemiology Project at University of Tsukuba'. Together they form a unique fingerprint.

Cite this