Atherosclerotic risk and social jetlag in rotating shift-workers: First evidence from a pilot study

Thomas Kantermann*, Françoise Duboutay, Damien Haubruge, Myriam Kerkhofs, Arno Schmidt-Trucksäss, Debra J Skene

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

30 Citations (Scopus)

Abstract

OBJECTIVE: The aim of this study was to identify atherosclerotic risk using pulse wave velocity (PWV) in steel workers employed in different shift-work rotations, and to elucidate its relationship to social jetlag and shift schedule details.

PARTICIPANTS: Male workers in a steel factory (n=77, 32 fast clockwise (CW), 30 slow counterclockwise (CC), 15 day workers (DW); mean age 42 ± SD 7.6 yrs) with at least 5 years of experience in their current work schedule participated.

METHODS: All workers completed questionnaires on demographics, health, psychotropic agents, sleep, social and work life, social jetlag (difference between mid-sleep time on workdays and days off used as a marker of circadian disruption) and chronotype (mid-sleep time on free days corrected for sleep deficit on workdays). In 63 workers we measured PWV, blood pressure (BP), heart rate (HR) between 08:00 and 12:30 h in controlled posture conditions (no caffeine/smoking/exercise).

RESULTS: There was no significant difference in PWV (covariates: age, BP) between the different shift-rotations (CW, CC and DW). In all workers combined, HR and social jetlag were significantly positively correlated. Demographic variables did not differ between shift-workers and day workers; shift-workers (CW, CC) reported significantly more stomach upsets, digestion problems, weight fluctuations, and social jetlag. The CW and CC workers did not differ in ratings of how shift-work affected sleep, social and work life.

CONCLUSIONS: PWV was not different between the two shift-rotations. This pilot study shows first evidence that HR is related to social jetlag, and therefore warrants more studies in different shift schedules.

Original languageEnglish
Pages (from-to)273-282
Number of pages10
JournalWork : a journal of prevention, assessment and rehabilitation
Volume46
Issue number3
DOIs
Publication statusPublished - 1-Jan-2013

Keywords

  • ISCHEMIC-HEART-DISEASE
  • CARDIOVASCULAR MORTALITY
  • EPIDEMIOLOGIC EVIDENCE
  • ARTERIAL STIFFNESS
  • RATE-VARIABILITY
  • POPULATION
  • CHRONOTYPE
  • PAPER
  • TIME

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