Abstract
The 24-hr urine sodium excretion level was estimated based on the spot urine sodium, and the efficacy of the formula was validated to determine the status of low salt intake < 100 mEq Na/day. The 24-hr urine samples were collected from 400 patients. The 24-hr urine creatinine level was estimated with the use of three formulas: a newly derived Korean equation (E24UCR_K), and Tanaka (E24UCR_T) and Cockcroft-Gault (E24UCR_CG) equations. The correlation coefficients between the estimated and measured 24-hr urine creatinine for these three equations were 0.863, 0.846, and 0.896, respectively (All P < 0.001). After estimating the 24-hr urine sodium levels, the correlation coefficients between the estimated and measured 24-hr urine sodium levels were 0.466, 0.490, and 0.516, respectively (All P < 0.001). The sensitivity of three formulas to estimate the measured 24-hr urine sodium ≥100 mEq/day using the estimated amount ≥100 mEq/day was 84.3%, 87.6%, and 84.8%, respectively. In conclusion, the three equations used to estimate the 24-hr urine sodium content were useful to determine the status of low salt intake.
Original language | English |
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Pages (from-to) | S97-S102 |
Journal | Journal of Korean medical science |
Volume | 29 |
DOIs | |
Publication status | Published - 2014 |
Externally published | Yes |
Keywords
- 24-hr urine sodium
- Spot urine creatinine
- Spot urine sodium
ASJC Scopus subject areas
- Medicine(all)