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Study Design.

Back and neck pain was studied crosssectionally in 1,449 urban transit drivers by linking medical data, self-reported ergonomic factors, and company records on job history.

Objectives.

The goal was to examine the relation between physical workload, ergonomic factors, and the prevalence of back and neck pain.

Summary of Background Data.

Researchers, to date, have not found an independent effect of ergonomic factors on back and neck pain while accounting for the effects of past and current physical workload.

Methods.

Self-reported ergonomic factors, vehicle type, physical workload (measured as duration of driving), height, weight, age, and gender were analyzed in relation to back and neck pain, using multivariable logistic regression models.

Results.

Physical workload showed a positive dose-response relation with back and neck pain after controlling for vehicle type, height, weight, age, and …