| Patterns of sodium and potassium excretion and blood pressure in the African Diaspora. | |
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MedLine Citation:
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PMID: 21593783 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Habitual levels of dietary sodium and potassium are correlated with age-related increases in blood pressure (BP) and likely have a role in this phenomenon. Although extensive published evidence exists from randomized trials, relatively few large-scale community surveys with multiple 24-h urine collections have been reported. We obtained three 24-h samples from 2704 individuals from Nigeria, Jamaica and the United States to evaluate patterns of intake and within-person relationships with BP. The average (±s.d.) age and weight of the participants across all the three sites were 39.9±8.6 years and 76.1±21.2 kg, respectively, and 55% of the total participants were females. Sodium excretion increased across the East-West gradient (for example, 123.9±54.6, 134.1±48.8, 176.6±71.0 (±s.d.) mmol, Nigeria, Jamaica and US, respectively), whereas potassium was essentially unchanged (for example, 46.3±22.9, 40.7±16.1, 44.7±16.4 (±s.d.) mmol, respectively). In multivariate analyses both sodium (positively) and potassium (negatively) were strongly correlated with BP (P<0.001); quantitatively the association was stronger, and more consistent in each site individually, for potassium. The within-population day-to-day variation was also greater for sodium than for potassium. Among each population group, a significant correlation was observed between sodium and urine volume, supporting the prior finding of sodium as a determinant of fluid intake in free-living individuals. These data confirm the consistency with the possible role of dietary electrolytes as hypertension risk factors, reinforcing the relevance of potassium in these populations.Journal of Human Hypertension advance online publication, 19 May 2011; doi:10.1038/jhh.2011.39. |
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Authors:
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B O Tayo; A Luke; C A McKenzie; H Kramer; G Cao; R Durazo-Arvizu; T Forrester; A A Adeyemo; R S Cooper |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-19 |
Journal Detail:
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Title: Journal of human hypertension Volume: - ISSN: 1476-5527 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8811625 Medline TA: J Hum Hypertens Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Preventive Medicine and Epidemiology, Loyola University Chicago Stritch School of Medicine, Maywood, IL, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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