Ethnicity Modifies Associations between Cardiovascular Risk Factors and Disease Severity in Parallel Dutch and Singapore Coronary Cohorts

In 2020 the largest number of patients with coronary artery disease (CAD) will be found in Asia. Published epidemiological and clinical reports are overwhelmingly derived from western (White) cohorts and data from Asia are scant. We compared CAD severity and all-cause mortality among 4 of the world&...

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Published in:PloS one 2015-07, Vol.10 (7), p.e0132278-e0132278
Main Authors: Gijsberts, Crystel M, Seneviratna, Aruni, de Carvalho, Leonardo P, den Ruijter, Hester M, Vidanapthirana, Puwalani, Sorokin, Vitaly, Stella, Pieter, Agostoni, Pierfrancesco, Asselbergs, Folkert W, Richards, A Mark, Low, Adrian F, Lee, Chi-Hang, Tan, Huay Cheem, Hoefer, Imo E, Pasterkamp, Gerard, de Kleijn, Dominique P V, Chan, Mark Y
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Language:eng
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Summary:In 2020 the largest number of patients with coronary artery disease (CAD) will be found in Asia. Published epidemiological and clinical reports are overwhelmingly derived from western (White) cohorts and data from Asia are scant. We compared CAD severity and all-cause mortality among 4 of the world's most populous ethnicities: Whites, Chinese, Indians and Malays. The UNIted CORoNary cohort (UNICORN) simultaneously enrolled parallel populations of consecutive patients undergoing coronary angiography or intervention for suspected CAD in the Netherlands and Singapore. Using multivariable ordinal regression, we investigated the independent association of ethnicity with CAD severity and interactions between risk factors and ethnicity on CAD severity. Also, we compared all-cause mortality among the ethnic groups using multivariable Cox regression analysis. We included 1,759 White, 685 Chinese, 201 Indian and 224 Malay patients undergoing coronary angiography. We found distinct inter-ethnic differences in cardiovascular risk factors. Furthermore, the associations of gender and diabetes with severity of CAD were significantly stronger in Chinese than Whites. Chinese (OR 1.3 [1.1-1.7], p = 0.008) and Malay (OR 1.9 [1.4-2.6], p
ISSN:1932-6203
1932-6203