Mortality trends due to circulatory system diseases in Brazil: 1950 to 2000

Eduarda Angela Pessoa Cesse1, Eduardo Freese de Carvalho, Wayner Vieira de Souza

  • 1Departamento de Saúde Coletiva, Centro de Pesquisas Aggeu Magalhães, Fiocruz, Recife, PE, Brasil. educesse@cpqam.fiocruz.br

Insights

Mortality risk from circulatory system diseases (CAD) is decreasing in Brazilian capitals since the 1980s, despite remaining a leading cause of death. This trend reflects broader public health and industrialization patterns across Brazil.

Area of Science:

  • Public Health
  • Epidemiology
  • Demography

Background:

  • Circulatory system diseases (CAD) are a major global health concern, representing the leading cause of death.
  • While mortality rates are declining in some nations, CAD remains proportionally the top cause of death in Brazil.

Purpose of the Study:

  • To analyze the mortality trends associated with circulatory system diseases (CAD) in Brazilian capital cities.
  • The study covers the period from 1950 to 2000, examining changes in mortality ratios.

Main Methods:

  • A temporal series study was conducted using Standardized Mortality Ratios (SMRs) for CAD.
  • Secondary data on mortality were sourced from the Brazilian Institute of Geography and Statistics (IBGE) and the Mortality Information System.
  • Linear trend analysis was applied to SMRs in Brazilian capital cities with complete mortality data for census years between 1950 and 2000.

Main Results:

  • Despite CAD being the primary cause of death and showing a proportional increase during the study period, the risk of death (SMRs) has decreased, particularly from the 1980s onwards.
  • Several major cities, including Fortaleza, Salvador, Belo Horizonte, Rio de Janeiro, and São Paulo, exhibited high SMRs but demonstrated a significant decreasing trend (p<0.05 and p<0.10) throughout the analyzed period.

Conclusions:

  • The declining mortality risk from CAD suggests it is an early-onset disease associated with industrialization and urbanization.
  • Cities like São Paulo and Rio de Janeiro, with earlier and more extensive development, experienced this pattern first, aligning with historical trends observed in other industrialized nations.
Abstract

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