Effects of measurement strategy and statistical analysis on dose-response relations between physical workload and low back pain

BACKGROUND: In epidemiological studies on physical workloads and back complaints, among the important features in modelling dose-response relations are the measurement strategy of the exposure and the nature of the dose-response relation that is assumed. AIM: To evaluate the effect of these two features on the strength of the dose-response relation between physical load and severe low back pain. METHODS: The study population consisted of 769 workers in nursing homes and homes for the elderly. Observations at the workplace were made of 212 subjects. These observations were analysed to determine... Mehr ...