Trends in the risk of death from cardiovascular, cerebrovascular and ischemic diseases in thirteen States of Brazil from 1980 to 1998. 
Analyze the trends in the risk of death from circulatory diseases (CD) in thirteen states in Brazil between 1980 and 1998.  Data on mortality from CD, ischemic heart diseases (IHD), and cerebrovascular diseases (CVD) in thirteen states were obtained from the Ministry of Health data base.  Populational estimates from 1980 to 1998 were calculated through interpolation, using the Lagrange method, based on data from the 1970, 1980, 1991 censuses, and 1996 populational count.  The trends were analyzed by multiple linear regression model.  Mortality due to CD showed a trend towards decrease in most states.  In Pernambuco state males presented increase in all age ranges, whereas in Goiás increase was shown from 40 years of age on, and in Bahia and Mato Grosso, from 50 years of age.  Females showed increase starting at 30 in Mato Grosso, at 40 in Pernambuco, and in Goiás, in the age ranging from 30 to 49 years of age.  In Goiás, increase was discreet in all other age ranges.  As for IHD, mortality increase was reported in all age ranges in Mato Grosso and Pernambuco; in Bahia, Goiás and Pará, from 40 on.  As for CVD, mortality increase was reported in all age ranges in Mato Grosso and Pernambuco; and from 40 on in Bahia and Goiás.  Significant increase in the risk of death from circulatory diseases could be observed in less developed states in Brazil.