Relationship between Nocturnal Blood Pressure and 24 Hour Urinary Sodium Excretion in a Rural Population in Korea

Title
Relationship between Nocturnal Blood Pressure and 24 Hour Urinary Sodium Excretion in a Rural Population in Korea
Author
신진호
Keywords
Sodium; Blood pressure; Urine specimen collection; Blood pressure monitoring; Ambulatory; Rural population
Issue Date
2014-09
Publisher
대한고혈압학회
Citation
Journal of the Korean Society of Hypertension(Clinical Hypertension), 2014, 20(1), P.1-10
Abstract
Background: The relationship between sodium intake and blood pressure (BP) is affected by many factors such as absolute level of sodium intake, salt sensitivity, and the accuracy or the timing of the BP measurement. There is no epidemiologic study using both ambulatory BP monitoring (ABPM) and 24-h urine sample in a middle-aged general population.Methods: In the rural area, Yeojoo County, Gyunggi Province in South Korea, 218 subjects with age between 30 and 59 years old were measured with ABPM and 24-h urine sample. ABPM device was TM2430, and the 24-h urine sample was collected using the aliquot cup. Metabolic syndrome (MetS) score was calculated by the sum of the number of abnormal criteria other than BP.Results: For both ABPM and 24-h urine sample, 148 subject data was acceptable for the analysis by the creatinine equation and/or the completeness of collection. Age was 47.4 ± 8.3 years (range 30 to 59 years), and female was 85 (57.4%). In multiple linear regression analysis, sodium intake was not an independent factor for casual BPs and daytime BPs whereas sodium intake was an independent factor for nighttime systolic BP (β = 1.625, p = 0.0026) and nighttime diastolic BP (β = 1.066, p = 0.0017). When compared to the lowest quartiles of sodium intake, daytime diastolic BP and nighttime BPs were in the higher three quartile groups.Conclusions: Sodium intake was associated not with casual BPs and daytime BPs but with increased nighttime BPs in the middle-aged general population in Korea.
URI
https://clinicalhypertension.biomedcentral.com/articles/10.1186/2056-5909-1-3http://hdl.handle.net/20.500.11754/52231
ISSN
2056-5909
DOI
10.1186/2056-5909-1-3
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COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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