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Title: Difference in atherosclerosis burden in different nations and continents assessed by coronary artery calcium
Author: Santos, Raul D.
Nasir, Khurram
Rumberger, John A.
Budoff, Matthew J.
Braunstein, Joel B.
Meneghelo, Romeu
Barreiros, Miguel
Pereirinha, Armando
Carvalho, José A. M.
Blumenthal, Roger S.
Raggi, Paolo
Keywords: Coronary artery calcium
Risk factors
Coronary artery disease
Electron beam computed tomography
Issue Date: 2006
Publisher: European Atherosclerosis Society
Citation: Atherosclerosis 187 (2006):378–384
Abstract: We utilized coronary artery calcium scores(CACS) to assess differences in atherosclerosis burden between asymptomatic White populations living in continents with different cardiovascular disease rates. The similarities in the genetic pool between Brazilian and Portuguese Caucasian subjects offered an opportunity to assess the influence of environmnetal factors on the development of atherosclerosis. We reviewed CACS data from 17,563 individuals (12,378 men and 5169 women) collected in the USA (74% of the subjects), Brazil (15% of the subjects) and Portugal (11% of the subjects). CACS was absent in 80 and 88% of Portuguese men and women, compared with 46 and 62% and 33 and 59% of Brazilian and US counterparts (p < 0.0001). Although the US subjects showed the lowest prevalence of risk factors they had a higher median (interquartile range) CACS than the Brazilian and the Portuguese cohorts: 4 (0;87), 1 (0;68) and 0 (0;0), respectively (p < 0.0001). After adjusting for differences in age and cardiovascular risk factors, US men showed higher relative risk ratios of having any CACS than either Brazilian or Portuguese men. Brazilian and US women did not differ as far as risk of CACS although they demonstrated a greater risk than Portuguese women. In this study, significant differences in CACS were detected among three nations in different continents. The CACS differences paralleled the respective cardiovascular mortality rates.
Peer review: yes
ISSN: 0021-9150
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Appears in Collections:FM-IMP-Artigos em Revistas Internacionais

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