Background and aims: The contribution of kidney dysfunction, especially at mild-to-moderate stages, and bone-mineral metabolism (BMM) markers to vascular calcification remains controversial or unclear. We comprehensively evaluated the association of kidney and BMM markers with coronary artery calcification (CAC) and extra-coronary calcification (ECC). Methods: In 1931 ARIC participants (age 73–95 years) without coronary heart disease at visit 7 (2018–19), we investigated the associations of estimated glomerular filtration rate (eGFR) (with creatinine, cystatin C, and both) and five serum BMM markers (calcium, fibroblast growth factor 23, magnesium, parathyroid hormone, and phosphorus) with high CAC and ECC (sex-race specific ≥75th vs. <75th percentile Agatston score) or any vs. zero CAC and ECC using multivariable logistic regression. For eGFR and BMM markers, we took their weighted cumulative averages from visit 1 (1987–89) to visit 5 (2011–13). Results: Lower eGFR, regardless of equations used, was not robustly associated with high CAC or ECC. Among BMM markers, only higher phosphorus levels, even within the normal range, showed robust associations with high CAC (only when modeled continuously) and ECC, independently of kidney function (e.g., odds ratio 1.94 [95%CI 1.38–2.73] for high aortic valve calcification, in the highest vs. lowest quartile). Results were generally consistent when analyzing any CAC or ECC, although cystatin C-based eGFR <60 mL/min/1.73 m2 became significantly associated with mitral valve calcification (odds ratio 1.69 [1.10–2.60]). Conclusions: Among kidney and BMM measures tested, only serum phosphorus demonstrated robust associations with both CAC and ECC, supporting a key role of phosphorus in the pathophysiology of vascular calcification.
|Original language||English (US)|
|Number of pages||9|
|State||Published - Mar 2023|
Bibliographical noteFunding Information:
The Atherosclerosis Risk in Communities study has been funded in whole or in part with Federal funds from the National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services , under Contract nos. ( 75N92022D00001 , 75N92022D00002 , 75N92022D00003 , 75N92022D00004 , 75N92022D00005 ). The present study was supported by R01HL136592 (Co-PIs: Drs. Matsushita and Blaha). Measurement of several BMM markers at visit 2 were funded by R01HL103706 (Lutsey PI ). The measurement of some BMM markers at visits 3 and 5 was conducted in an ancillary study supported by research funding from Kyowa Kirin (PI: Dr. Matsushita). Dr. Lutsey was also partially supported by K24 HL159246 .
© 2023 Elsevier B.V.
- Older adults
PubMed: MeSH publication types
- Journal Article
- Research Support, N.I.H., Extramural
- Research Support, U.S. Gov't, P.H.S.
- Research Support, Non-U.S. Gov't