971Ethnicity and Cardiovascular Disease in the Australian Population

Abstract

Abstract Focus of Presentation Cardiovascular disease (CVD) risk prediction is recommended for Australians over 45 and Indigenous Australians over 35 years of age. UK evidence for the QRISK tool suggests that including ethnic background as a moderator, improves risk prediction. Australian risk-charts do not account for ethnicity, despite the diversity of the population. Our aim was to compare CVD prevalence among Australian ethnic groups, defined by country of birth and summarized in the following regions: 1.Oceania and Antarctica, 2.North-West-, 3.Southern and Eastern Europe, 4.North Africa and Middle East, 5.South-East-, 6.North-East-, 7.Southern and Central Asia, 8.America and 9.Sub-Saharan Africa. Findings Aggregated data from the Australian Health Survey Core Content–Risk Factors and Health Conditions 2011-12 TableBuilder of Australian Bureau of Statistics were representative of approximately 21.5M Australians according to weights’ analysis; however, age standardisation was impossible. Ischemic CVD prevalence for Australians born in Oceania and Antarctica was approximately 2.6%, North-West Europe 5.1%, Southern and Eastern Europe 6.7%, North Africa and Middle East 4.3%, South-East Asia 1.3%, north-East Asia 0.3%, South and Central Asia 1.2%, America 2.3% and Sub-Saharan Africa 1.2%. In all ethnic sub-groups, males represented 51-83% of individuals with CVD. Conclusions/Implications Country of birth may be used as a proxy of ethnic background for investigating potential socio-cultural CVD risk factors and if accounted for, might increase risk-charts’ performance. Key messages Australians’ ethnic background is associated with CVD prevalence. Including ethnicity in risk-tools might increase accuracy in CVD risk prediction.