Estimated 24-Hour Urine Sodium Excretion Is Correlated with Blood Pressure in Korean Population: 2009-2011 Korean National Health and Nutritional Examination Survey
Journal of Korean Medical Science
;
: S109-S116, 2014.
Article
in English
| WPRIM
| ID: wpr-51702
ABSTRACT
No large-scale studies have investigated the association between salt intake and hypertension in Korean population. To investigate the relationship of blood pressure to salt consumption, we analyzed data from 19,476 participants in the 2009-2011 Korean National Health and Nutritional Examination Survey (KNHANES). Urinary sodium excretion over 24-hr (24HUNa) was estimated from spot urine tests using Tanaka's equation. The study subjects were stratified into hypertensive and normotensive groups. Hypertensive participants (n=6,552, 33.6%) had higher estimated 24HUNa, 150.4+/-38.8 mEq/day, than normotensive participants, 140.5+/-34.6 mEq/day (P<0.001). The association between 24HUNa and blood pressure outcomes was not affected by adjustment for other risk factors for hypertension (odds ratio 0.001; 95% confidence interval 0.001-0.003; P<0.001). Increases in 24HUNa of 100 mEq/day were associated with a 6.1+/-0.3/2.9+/-0.2 mmHg increase in systolic/diastolic blood pressure in all participants. This effect was stronger in hypertensive participants (increase of 8.1+/-0.5/3.4+/-0.3 mmHg per 100 mEq/day) and smaller in normotensive participants (2.9+/-0.3/1.3+/-0.2 mmHg). These results support recommendations for low salt intake in Korean population to prevent and control adverse blood pressure levels.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Blood Pressure
/
Algorithms
/
Sodium, Dietary
/
Logistic Models
/
Demography
/
Nutrition Surveys
/
Prevalence
/
Risk Factors
/
Asian People
/
Republic of Korea
Type of study:
Etiology study
/
Prevalence study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
English
Journal:
Journal of Korean Medical Science
Year:
2014
Type:
Article
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