Abstract 20588: Urbanization is Associated to Increased Trends in Cardiovascular Mortality Among Indigenous Populations
Introduction: For indigenous living in traditional tribes, urbanization leads to fast changes in CV risk with unknown impact in mortality rates. This is particularly relevant when large governmental interventions occur in the proximity of indigenous areas in developing countries.
Aims: We investigate the CV mortality profile of indigenous populations during a rapidly urbanization process, largely influenced by governmental infrastructure interventions in Northeast Brazil.
Methods: We assessed indigenous mortality (≥ 30 y/o) registered by the Brazilian Health Ministry (2007-2011) in states of Northeast Brazil (Bahia and Pernambuco). CV mortality was defined according to ICD-10 and if sudden death in indigenous living in tribes by the Sao Francisco Valley (n = 25,560); then divided according to the degree of urbanization using anthropological criteria: Group 1 - traditional indigenous (Funi-ô, Pankararu, Kiriri, and Pankararé); Group 2 - advanced urbanization stages (Tuxá, Truká, and Tumbalalá). Mortality rates of highly urbanized cities (Petrolina e Juazeiro) in the proximity of indigenous areas were also evaluated. Analysis explored trends in the percentage of CV mortality for each studied population.
Results: There were 1,333 indigenous deaths in tribes of Bahia and Pernambuco (2007-2011), with 281 in Group 1 (1.8% of the 2012 group population) and 73 in Group 2 (3.7% of the 2012 group population), CV mortality of 24% and 37% respectively (p=0,02). Between 2007-2009, there were 133 deaths in Group 1 and 44 in Group 2, CV mortality of 23% and 34% respectively. Between 2009-2010, there were 148 deaths in Group 1 and 29 in Group 2, CV mortality of 25% and 41% respectively. Figure 1 shows CV mortality trends over time for indigenous and nearby cities.
Conclusions: Urbanization appears to influence increases in CV mortality of indigenous living in traditional tribes. Lifestyle changes due to urbanization added to suboptimal health care may increase CV risk in this population.
Author Disclosures: A.C. Armstrong: None. A.T. Ladeia: None. J. Marques: None. D. Armstrong: None. A. Silva: None. L.L. Correia: None. M. Barral Netto: None. J.A. Lima: None.
- © 2016 by American Heart Association, Inc.