Send to

Choose Destination
Scand J Work Environ Health. 1999 Apr;25(2):85-99.

Shift work, risk factors and cardiovascular disease.

Author information

Centre for Working Time Research, Department of Occupational Medicine, Aalborg Regional Hospital, Denmark.


The literature on shift work, morbidity and mortality from cardiovascular disease, and changes in traditional risk factors is reviewed. Seventeen studies have dealt with shift work and cardiovascular disease risk. On balance, shift workers were found to have a 40% increase in risk. Causal mechanisms of this risk via known cardiovascular risk factors, in relation to circadian rhythms, disturbed sociotemporal patterns, social support, stress, behavior (smoking, diet, alcohol, exercise), and biochemical changes (cholesterol, triglycerides, etc) are discussed. The risk is probably multifactorial, but the literature has focused on the behavior of shift workers and has neglected other possible causal connections. In most studies methodological problems are present; these problems are related to selection bias, exposure classification, outcome classification, and the appropriateness of comparison groups. Suggestions for the direction of future research on this topic are proposed.

[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Scandinavian Journal of Work, Environment & Health
Loading ...
Support Center