Bias in risk estimates from variability of exposure to postural load on the back in occupational groups.
Variability of exposure can be a source of information bias in studies with exposure assessment based on the use of a sample of workers in each occupational group under study.
This paper presents a method to assess the rate of exposure misclassification from the magnitude of overlap of exposure distributions and, consequently, to evaluate the bias to risk estimates in cross-sectional and prospective studies.
The percentage of worktime with trunk flexion and rotation was studied in five occupational groups.
The rate of misclassification of exposure to trunk flexion and rotation varied from 0.03 to 0.35.
Mots-clés Pascal : Epidémiologie, Charge travail, Rachis pathologie, Exposition professionnelle, Homme, Posture, Lombalgie, Biais méthodologique, Système ostéoarticulaire pathologie, Activité professionnelle
Mots-clés Pascal anglais : Epidemiology, Work load, Disease of the spine, Occupational exposure, Human, Posture, Low back pain, Methodological bias, Diseases of the osteoarticular system, Professional activity
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 93-0295482
Code Inist : 002B15F. Création : 199406.