[Socioeconomic position and duration of disability benefit due to work-related musculoskeletal disorders].

This study estimated the effect of socioeconomic position on the duration of disability benefits due to musculoskeletal disorders affecting the neck and/or upper limbs. A cohort study including 563 insured workers from the city of Salvador, Bahia, Brazil, registered in the General Social Security System and who received temporary disability benefits due to musculoskeletal disorders affecting the neck and/or upper limbs, was performed in 2008 using data from the National Social Security Institute. The results show that among union member workers with high psychosocial demands at work, those with low socioeconomic status are almost twice as likely to receive benefit for a shorter period of time compared to those with a higher socioeconomic position (RR = 1.89; 95%CI: 1.25-2.87). These results reveal an inequitable situation or unnecessary use of insurance for workers with a higher socioeconomic position. Future research aimed at elucidating the differences in the use of benefits are needed so that social insurance system managers may take the appropriate steps to resolve this issue.