Background and aims: The prevalence of aortic valve calcification (AVC) increases with age. However, the sex-and race-specific burden of AVC and associated cardiovascular risk factors among adults ≥75 years are not well studied. Methods: We calculated the sex-and race-specific burden of AVC among 2283 older Black and White adults (mean age:80.5 [SD:4.3] years) without overt coronary heart disease from the Atherosclerosis Risk in Communities Study who underwent non-contrast cardiac-gated CT-imaging at visit 7 (2018–2019). Using Poisson regression with robust variance, we calculated the adjusted prevalence ratios (aPR) of the association of AVC with cardiovascular risk factors. Results: The overall AVC prevalence was 44.8%, with White males having the highest prevalence at 58.2%. The prevalence was similar for Black males (40.5%), White females (38.9%), and Black females (36.8%). AVC prevalence increased significantly with age among all race-sex groups. The probability of any AVC at age 80 years was 55.4%, 40.0%, 37.3%, and 36.2% for White males, Black males, White females, and Black females, respectively. Among persons with prevalent AVC, White males had the highest median AVC score (100.9 Agatston Units [AU]), followed by Black males (68.5AU), White females (52.3AU), and Black females (46.5AU). After adjusting for cardiovascular risk factors, Black males (aPR:0.53; 95%CI:0.33–0.83), White females (aPR:0.68; 95%CI:0.61–0.77), and Black females (aPR:0.49; 95%CI:0.31–0.77) had lower AVC prevalence compared to White males. In addition, systolic blood pressure, non-HDL-cholesterol, and lipoprotein (a) were independently associated with AVC, with no significant race/sex interactions. Conclusions: AVC, although highly prevalent, was not universally present in this cohort of older adults. White males had ∼50–60% higher prevalence than other race-sex groups. Moreover, cardiovascular risk factors measured in older age showed significant association with AVC.
|Original language||English (US)|
|Number of pages||8|
|State||Published - Aug 2022|
Bibliographical noteFunding Information:
The ARIC study has been funded in whole or in part with federal funds from the National Heart, Lung, and Blood Institute ( NHLBI, National Institutes of Health h ( NIH, Department of Health and Human Services s, under contract numbers HHSN268201700001I , HHSN268201700002I , HHSN268201700003I , HHSN268201700005I , and HHSN268201700004I . The authors thank the ARIC study staff and participants for their important contributions. The present study is also supported by R01HL136592 (PIs-Drs. Matsushita and Blaha). In addition, Dr. Frances Wang received support from the NIH T32 institutional training grant (T32 HL007024).
© 2022 Elsevier B.V.
- Aortic valve calcification
- Cardiovascular risk factors
- Older adults
PubMed: MeSH publication types
- Journal Article
- Research Support, N.I.H., Extramural