Associations between shift schedule characteristics with sleep, need for recovery, health and performance measures for regular (semi-)continuous 3-shift systems

Appl Ergon. 2016 Sep:56:203-12. doi: 10.1016/j.apergo.2016.04.004. Epub 2016 Apr 28.

Abstract

In this cross-sectional study associations were examined between eight shift schedule characteristics with shift-specific sleep complaints and need for recovery and generic health and performance measures. It was hypothesized that shift schedule characteristics meeting ergonomic recommendations are associated with better sleep, need for recovery, health and performance. Questionnaire data were collected from 491 shift workers of 18 companies with 9 regular (semi)-continuous shift schedules. The shift schedule characteristics were analyzed separately and combined using multilevel linear regression models. The hypothesis was largely not confirmed. Relatively few associations were found, of which the majority was in the direction as expected. In particular early starts of morning shifts and many consecutive shifts seem to be avoided. The healthy worker effect, limited variation between included schedules and the cross-sectional design might explain the paucity of significant results.

Keywords: Fatigue; Health; Need for recovery; Shift work; Sleep; Work functioning; Work schedule tolerance.

MeSH terms

  • Adult
  • Cross-Sectional Studies
  • Fatigue / etiology*
  • Female
  • Healthy Worker Effect
  • Humans
  • Male
  • Middle Aged
  • Occupational Diseases / etiology*
  • Occupational Health
  • Rest / physiology
  • Sleep Wake Disorders / etiology*
  • Sleep*
  • Surveys and Questionnaires
  • Time Factors
  • Work Schedule Tolerance / physiology*