|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
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Keywords : Dietary sodium intake, Salt taste sensitivity test, Salt tolerance, Taste threshold, Urine sodium, validity
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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.
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