4.6 Article

Ethnic Disparity in Mortality Among Ischemic Heart Disease Patients. A-20 Years Outcome Study From Israel

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FRONTIERS MEDIA SA
DOI: 10.3389/fcvm.2021.661390

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ischemic heart disease; ethnicity; all-cause mortality; disparity; heart disease

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This study found that Israeli Arab patients with established IHD have a higher all-cause mortality rate, with a 49% increased risk compared to Jewish patients.
Background: Long-term morbidity and mortality data among ischemic heart disease (IHD) patients of different ethnicities are conflicting. We sought to determine the independent association of ethnicity and all-cause mortality over two decades of follow-up of Israeli patients. Methods: Our study comprised 15,524 patients including 958 (6%) Arab patients who had been previously enrolled in the Bezafibrate Infarction Prevention (BIP) registry between February 1, 1990, and October 31, 1992, and subsequently followed-up for long-term mortality. We compared clinical characteristics and outcomes of Israeli Arabs and Jews. Propensity score matching (PSM) (1:2 ratios) was used for validation. Results: Arab patients were significantly younger (56 +/- 7 years vs. 60 +/- 7 years; p < 0.001; respectively), and had more cardiovascular disease (CVD) risk factors. Kaplan-Meier survival analysis showed that all-cause mortality was significantly higher among Arab patients (67 vs. 61%; log-rank p < 0.001). Multivariate adjusted analysis showed that mortality risk was 49% greater (HR 1.49; 95% CI: 1.37-1.62; p < 0.001) among Arabs. Conclusions: Arab ethnicity is independently associated with an increased 20-year all-cause mortality among patients with established IHD.

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