8702 Age-Sex Differences in Global Burden of Ischemic Heart Disease Attributable to High LDL in the Last 3 Decades:Global, Regional, National Variations, Age Dynamics, and Implications for Global Health

Abstract Disclosure: V. Adedara: None. K. Maddineni: None. A. Dekhne: None. M. Chinthapalli: None. G. Potluri: None. A. Parisapogu: None. K. Markandu: None. H. Desai: None. Background: Ischemic Heart Disease (IHD) stands as the foremost cause of mortality globally, contributing to 9.6 million deaths. Elevated levels of low-density lipoprotein cholesterol (LDL-C) consistently feature among the risk factors associated with IHD. Methods: Employing the Global Burden of Disease framework, we computed mortality and DALYs linked to IHD attributable to LDL-C, stratified by age-sex, year, and covering 204 countries and territories during the period from 1990 to 2019. Non-fatal health outcomes were estimated using DISMOD MR 2.1, Bayesian meta-regression tool for epidemiological modelling. Results were expressed in absolute counts and age-standardized rates (ASR) per 100,000 person-years. Results: The total number of deaths attributed to IHD due to elevated LDL-C increased from 2.5 million (95% Uncertainty Interval: 2-3.1 million) in 1990 to 3.7 million (95% UI: 2.8-4.8 million) in 2019. Concurrently, DALYs increased from 60.4 million (95% UI: 50.4-70.7 million) in 1990 to 84.9 million (95% UI: 69.5-101.3 million) in 2019. In terms of ASR, the annual percentage change (APC) in death rates decreased by 36%, and DALY rates decreased by 32% from 1990 to 2019. Regionally, East Asia exhibited the highest increase in APC in death counts by 191%, followed by Commonwealth Low-Income countries at 164%, and Oceania at 160% during the same period. Conversely, the Commonwealth High-Income region experienced the highest decrease at 41%. Males displayed higher APC in death (48% vs. 44%) and DALYs (42% vs. 38%) compared to females over the last three decades. In terms of ASR, males observed a higher decrease compared to females. In 2019, the age group 80-84 years had the highest number of deaths at 534,079 (264,177-813,898), while DALYs were most pronounced in the 55-59 year age group, reaching 10.6 million (8.9-12.3 million). Conclusion: IHD remains a significant global health challenge, with high LDL-C levels being a crucial modifiable risk factor. Age-sex disparities in the burden of IHD are evident, driven by variations in LDL-C metabolism, hormonal changes, and lifestyle factors. Recognizing and addressing these disparities is essential for developing effective prevention and treatment strategies tailored to different populations and age groups. Presentation: 6/2/2024