Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study

<p><strong>Background:&nbsp;</strong>Serum phosphate is a known risk factor for cardiovascular events and mortality in people with chronic kidney disease (CKD), however data on the association of these outcomes with serum phosphate in the general population are scarce. We inves...

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Main Authors: McGovern, AP, de Lusignan, S, van Vlymen, J, Liyanage, H, Tomson, CR, Gallagher, H, Rafiq, M, Jones, S
Format: Journal article
Language:English
Published: Public Library of Science 2013
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author McGovern, AP
de Lusignan, S
van Vlymen, J
Liyanage, H
Tomson, CR
Gallagher, H
Rafiq, M
Jones, S
author_facet McGovern, AP
de Lusignan, S
van Vlymen, J
Liyanage, H
Tomson, CR
Gallagher, H
Rafiq, M
Jones, S
author_sort McGovern, AP
collection OXFORD
description <p><strong>Background:&nbsp;</strong>Serum phosphate is a known risk factor for cardiovascular events and mortality in people with chronic kidney disease (CKD), however data on the association of these outcomes with serum phosphate in the general population are scarce. We investigate this relationship in people with and without CKD in a large community-based population.</p> <p><strong>Methods:&nbsp;</strong>Three groups from an adult cohort of the Quality Improvement in Chronic Kidney Disease (QICKD) cluster randomised trial (ISRCTN56023731) were followed over a period of 2.5 years: people with normal renal function (N = 24,184), people with CKD stages 1&ndash;2 (N = 20,356), and people with CKD stages 3&ndash;5 (N = 13,292). We used a multilevel logistic regression model to determine the association between serum phosphate, in these groups, and a composite outcome of all-cause mortality, cardiovascular events, and advanced coronary artery disease. We adjusted for known cardiovascular risk factors.</p> <p><strong>Findings:&nbsp;</strong>Higher phosphate levels were found to correlate with increased cardiovascular risk. In people with normal renal function and CKD stages 1&ndash;2, Phosphate levels between 1.25 and 1.50 mmol/l were associated with increased cardiovascular events; odds ratio (OR) 1.36 (95% CI 1.06&ndash;1.74; p = 0.016) in people with normal renal function and OR 1.40 (95% CI 1.09&ndash;1.81; p = 0.010) in people with CKD stages 1&ndash;2. Hypophosphatemia (&lt;0.75 mmol/l) was associated with fewer cardiovascular events in people with normal renal function; OR 0.59 (95% CI 0.36&ndash;0.97; p = 0.049). In people with CKD stages 3&ndash;5, hyperphosphatemia (&gt;1.50 mmol/l) was associated with increased cardiovascular risk; OR 2.34 (95% CI 1.64&ndash;3.32; p&lt;0.001). Other phosphate ranges were not found to have a significant impact on cardiovascular events in people with CKD stages 3&ndash;5.</p> <p><strong>Conclusions:&nbsp;</strong>Serum phosphate is associated with cardiovascular events in people with and without CKD. Further research is required to determine the mechanisms underlying these associations.</p>
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spelling oxford-uuid:600dd421-c708-418a-a240-a64252e0f80d2024-08-01T09:52:54ZSerum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort studyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:600dd421-c708-418a-a240-a64252e0f80dEnglishSymplectic ElementsPublic Library of Science2013McGovern, APde Lusignan, Svan Vlymen, JLiyanage, HTomson, CRGallagher, HRafiq, MJones, S<p><strong>Background:&nbsp;</strong>Serum phosphate is a known risk factor for cardiovascular events and mortality in people with chronic kidney disease (CKD), however data on the association of these outcomes with serum phosphate in the general population are scarce. We investigate this relationship in people with and without CKD in a large community-based population.</p> <p><strong>Methods:&nbsp;</strong>Three groups from an adult cohort of the Quality Improvement in Chronic Kidney Disease (QICKD) cluster randomised trial (ISRCTN56023731) were followed over a period of 2.5 years: people with normal renal function (N = 24,184), people with CKD stages 1&ndash;2 (N = 20,356), and people with CKD stages 3&ndash;5 (N = 13,292). We used a multilevel logistic regression model to determine the association between serum phosphate, in these groups, and a composite outcome of all-cause mortality, cardiovascular events, and advanced coronary artery disease. We adjusted for known cardiovascular risk factors.</p> <p><strong>Findings:&nbsp;</strong>Higher phosphate levels were found to correlate with increased cardiovascular risk. In people with normal renal function and CKD stages 1&ndash;2, Phosphate levels between 1.25 and 1.50 mmol/l were associated with increased cardiovascular events; odds ratio (OR) 1.36 (95% CI 1.06&ndash;1.74; p = 0.016) in people with normal renal function and OR 1.40 (95% CI 1.09&ndash;1.81; p = 0.010) in people with CKD stages 1&ndash;2. Hypophosphatemia (&lt;0.75 mmol/l) was associated with fewer cardiovascular events in people with normal renal function; OR 0.59 (95% CI 0.36&ndash;0.97; p = 0.049). In people with CKD stages 3&ndash;5, hyperphosphatemia (&gt;1.50 mmol/l) was associated with increased cardiovascular risk; OR 2.34 (95% CI 1.64&ndash;3.32; p&lt;0.001). Other phosphate ranges were not found to have a significant impact on cardiovascular events in people with CKD stages 3&ndash;5.</p> <p><strong>Conclusions:&nbsp;</strong>Serum phosphate is associated with cardiovascular events in people with and without CKD. Further research is required to determine the mechanisms underlying these associations.</p>
spellingShingle McGovern, AP
de Lusignan, S
van Vlymen, J
Liyanage, H
Tomson, CR
Gallagher, H
Rafiq, M
Jones, S
Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study
title Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study
title_full Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study
title_fullStr Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study
title_full_unstemmed Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study
title_short Serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease: a large community based cohort study
title_sort serum phosphate as a risk factor for cardiovascular events in people with and without chronic kidney disease a large community based cohort study
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