Invalidez por dor nas costas entre os contribuintes da Previdência Social, Brasil, 2007

Abstract

The aim of the present work was to analyze the magnitude and the distribuition of the back pain disability retirements in Brazil, 2007. It is a descriptive study utilizing data from the Unique System of Benefits Information of the National Institute of Social Secure and from the Statistical Annual of Social Security. There were 10.839 benefits of back pain disability retirements (B32 and B92). The variables: age, gender, state and great regions were used to calculate the incidence rate of back pain in disability retirements while the variables, salary level, branch of activity, clientele, type of filiation were used to calculate the proportions. The data of all causes of disability retirement were used to calculate the ten first causes. The working days lost from disability retirement for each branch of activity were calculated. The idiopatic back pain was the first cause of disability retirement in 2007. The majority of the beneficiaries lived in urban area, was commerce workers and earned up to three minimum salaries. The back pain incidence rate in disability retirements was 29,96 per 100.000 contributors. The incidence was more elevated in males and presented a growing tendence with age. The incidence rate in Rondonia, state of greater proportion of rural workers, was four times the expected value (RR= 4,05) while the second greater incidence was only twice as expected (RR=2,07). The back pain was an important reason of disability retirement in 2007. The observed differences in the states incidences indicate to a necessary better comprehension of the associated factors of this important morbidity problem for the Brazilian working population.