Abstract:
:A higher serum phosphorus level is associated with cardiovascular disease (CVD) events among community-living populations. Mechanisms are unknown. The ankle-brachial index (ABI) provides information on both atherosclerosis and arterial stiffness. In this cross-sectional study (2000-2002), the authors evaluated the association of serum phosphorus levels with low (<0.90) and high (> or =1.40 or incompressible) ABI as compared with intermediate ABI in 5,330 older US men, among whom the mean serum phosphorus level was 3.2 mg/dL (standard deviation, 0.4), 6% had a low ABI, and 5% had a high ABI. Each 1-mg/dL increase in serum phosphorus level was associated with a 1.6-fold greater prevalence of low ABI (95% confidence interval (CI): 1.2, 2.1; P < 0.001) and a 1.4-fold greater prevalence of high ABI (95% CI: 1.0, 1.9; P = 0.03) in models adjusted for demographic factors, traditional CVD risk factors, and kidney function. However, the association of phosphorus with high ABI differed by chronic kidney disease (CKD) status (in persons with CKD, prevalence ratio = 2.96, 95% CI: 1.61, 5.45; in persons without CKD, prevalence ratio = 1.14, 95% CI: 0.81, 1.61; interaction P = 0.04). In conclusion, among community-living older men, higher phosphorus levels are associated with low ABI and are also associated with high ABI in persons with CKD. These associations may explain the link between serum phosphorus levels and CVD events.
journal_name
Am J Epidemioljournal_title
American journal of epidemiologyauthors
Meng J,Wassel CL,Kestenbaum BR,Collins TC,Criqui MH,Lewis CE,Cummings SR,Ix JH,Osteoporotic Fractures in Men (MrOS) Study Group.doi
10.1093/aje/kwq020subject
Has Abstractpub_date
2010-04-15 00:00:00pages
909-16issue
8eissn
0002-9262issn
1476-6256pii
kwq020journal_volume
171pub_type
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