Validation of a Salt Sensitivity Test as a Possible Alternative to a 24-Hour Urine Test

Rada Mazaheri; Morteza Abdollahi; Arezoo Rezazadeh; Hassan Eini-Zinab

E-ISSN : 2148-9696

Crescent Journal of
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Jul 2021, Vol 8, Issue 3

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Original Article
Validation of a Salt Sensitivity Test as a Possible Alternative to a 24-Hour Urine Test
Rada Mazaheri¹, Morteza Abdollahi², Arezoo Rezazadeh¹, Hassan Eini-Zinab¹
¹Department of Community Nutrition, National Nutrition and Food Technology Research Institute, School of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran ²National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
CJMB 2021; 8: 185-190 Viewed : 2214 times Downloaded : 1774 times. Keywords : Dietary sodium intake, Salt taste sensitivity test, Salt tolerance, Taste threshold, Urine sodium, validity
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Abstract

Objectives: The 24-hour urine sodium (Na) test is the gold standard method for measuring salt intake in community studies. This study aimed to compare the results of a 24-hour urine Na test with those obtained from the salt taste sensitivity test (STST) in order to validate the STST as a possible substitute for the 24-hour urine Na test. Materials and Methods: Both tests were simultaneously performed on 30 individuals. The results were compared using correlation models. Results: STST results in the tolerance threshold had a strong and positive correlation with the results of the 24-hour urine Na (r=0.93, P < 0.001). In addition, the distance between the tolerance threshold and the recognition threshold scores was strongly correlated with the results of 24-hour urine Na (r=0.830, P < 0.001). Finally, there was no significant correlation between recognition threshold scores and 24-hour urine Na (r=0.087, P = 0.64). Conclusions: In general, the STST showed a promising potential to be replaced with the 24-hour urine Na test in community studies.