Heterogeneity of Apolipoprotein B Levels Among Hispanic or Latino Individuals Residing in the US

载脂蛋白B 医学 队列 人口学 人口 老年学 胆固醇 内科学 环境卫生 社会学
作者
Leandro Slipczuk,Toshiki Kuno,Santica M. Marcovina,Katrina Swett,Kate K. Orroth,J. Antonio G. López,Shia T. Kent,John N. Booth,Robert C. Kaplan,Daniela Sotres‐Alvarez,Bharat Thyagarajan,Tamar Sofer,Martha L. Daviglus,Gregory A. Talavera,Parag H. Joshi,Carlos J. Rodríguez
出处
期刊:JAMA Cardiology [American Medical Association]
标识
DOI:10.1001/jamacardio.2024.4789
摘要

Importance Apolipoprotein B (apoB) distribution and its implications as an atherosclerotic cardiovascular disease (ASCVD) risk-enhancing factor among individuals of diverse Hispanic or Latino backgrounds have not been described. Objective To describe the distribution of apoB in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) cohort and to characterize associations of baseline sociodemographic and clinical variables with apoB and self-identified Hispanic or Latino background. Design, Setting, and Participants The HCHS/SOL was a prospective, population-based cohort study of diverse Hispanic or Latino adults living in the US who were recruited and screened between March 2008 and June 2011. Sampling weights were used to generate a population-based sample of Hispanic or Latino participants aged 18 to 74 years who resided in 4 US metropolitan areas (Bronx, New York; Chicago, Illinois; Miami, Florida; and San Diego, California). ApoB concentration was measured in participants from the HCHS/SOL, and apoB tertiles were compared across demographic groups, including self-identified Hispanic or Latino background. Median percentage continental genetic ancestry (West African, Amerindian, and European) was compared across apoB tertiles. Exposure ApoB measured in mg/dL from serum or plasma using an immunoturbidimetric assay. Main Outcomes and Measures ApoB tertiles were determined, and traditional lipids were evaluated across apoB tertiles. ApoB and traditional lipid measurements were assessed across ASCVD risk categories. Additionally, scatterplots were created to observe correlations between apoB and low-density lipoprotein cholesterol or non–high-density lipoprotein cholesterol. Results Overall mean (SD) apoB concentration was 99.8 (0.4) mg/dL, with male participants displaying significantly higher mean levels than female participants (102.4 vs 97.4 mg/dL, respectively). Mean (SD) participant age was 41.1 (0.8) years, and 8376 participants (51.9%) were female. ApoB levels were higher among older age groups. There was significant heterogeneity in mean apoB concentrations across self-identified Hispanic or Latino background groups, ranging from 95.1 mg/dL in Dominican individuals to 104.8 mg/dL in Cuban individuals. The prevalence of elevated apoB (≥130 mg/dL) was greater across higher predicted ASCVD risk categories. Among participants with a 10-year predicted ASCVD risk of 7.5% or higher, 26.5% had an elevated apoB. Median West African ancestry was lower across higher tertiles of apoB. Conclusions and Relevance In this cohort study among participants from the HCHS/SOL, elevated apoB was present in one-quarter of a diverse cohort study of Hispanic or Latino individuals who were at intermediate or high predicted ASCVD risk. Differences in apoB distribution among Hispanic or Latino individuals may have important implications for apoB’s use in ASCVD risk assessment.
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