Validade e acurácia da causa básica na declaração de óbitos por acidentes de trabalho e outras violências. / Validity and accuracy of underlying cause of death due to work accidents and other violent events.
Study the validity and accuracy of underlying cause of death due to work related injuries and other external causes on people 10 to 64 years of age, inhabiting Salvador city and its outskirts, state of Bahia, Brazil. Comparison and quantification of agreement indexes between officiallydeclared cause of death and information retrieved by the research, by means of description of death circumstances and work situations, obtained by domiciliary interviews and coded according to ICD 10. Specificity, sensitivity and predictive values for the officially declared causes were calculated. The number of deaths due to workinjuries (126) was estimated in 19.4% of all external causes; the under-reporting of work related deaths was 92.6%; estimated sensibility (7.14%), specificity (99.8%); positive predictive value (90%), and negative predictive value(81.66%). High disagreement indexes between underlying causes of death (52.8%) were found; this was higher for women (61.4%), for people older than 30 years age (64.0%), transportationaccidents (84.7%) and suicides (82.8%). The SIM (Brazilian national mortalityinformation system) has shown very low sensibility to identify work related deaths. Inter-sectional actions are needed in order to produce more accurate health information.