Physical workload and risk of long-term sickness absence in the general working population and among blue-collar workers: prospective cohort study with register follow-up

To determine the prospective association between physical workload--in terms of specific physical exposures and the number of exposures--and long-term sickness absence (LTSA).Using cox-regression analyses, we estimated the risk of register-based incident LTSA (at least 3 consecutive weeks) from self-reported exposure to different physical workloads among 11,908 wage earners from the general working population (Danish Work Environment Cohort...