KMID : 0384320120330020094
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Korean Journal of Family Medicine 2012 Volume.33 No. 2 p.94 ~ p.104
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Lack of Association between Self-reported Saltiness of Eating and Actual Salt Intake
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Chang Yun-Ryong
Park Min-Seon Chung So-Yeon Lee Sun-Young Kwon Hyuk-Tae Lee Jung-Un
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Abstract
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Background: Reducing salt intake is known to be an important factor for lowering blood pressure and preventing cardiovascular disease. Estimating amount of salt intake is a necessary step towards salt intake reduction. Self-reported saltiness of diet is a method most easily used to measure a patient¡¯s salt intake. The purpose of this study was to examine the value of self-reported saltiness of diet in measuring salt intake.
Methods: We used data from 681 participants who visited a health center at a university hospital between August 2003 and November 2005. A self-administered questionnaire was used to collect information on self-reported saltiness of diet, other dietary habits and lifestyle factors. Salt intake was estimated on the basis of 24-hour dietary recall with a computeraided nutritional analysis program (CAN-Pro 2.0, Korean Nutrition Society).
Results: There was no statistically signifi cant difference between the mean salt intake of the self-reported salty diet group (13.7 ¡¾ 4.8 g/d) and the self-reported unsalty diet group (13.3 ¡¾ 4.4 g/d). If we assume calculated salt intake as the gold standard, the sensitivity and specificity of self-reported saltiness were 39.5% and 63.6%, respectively. Salt intake was increased with higher calorie intake, frequency of eating breakfast (¡Ã5 times/wk) and being satiated with usual diet in men, but it was increased only with higher calorie intake in women. Regardless of actual salt intake, the group satiated with a usual diet tended to be in the group of self-reported salty diet.
Conclusion: Self-reported saltiness of diet was not associated with actual salt intake. Further studies will be needed on the simpler and more objective tools to estimate salt intake.
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KEYWORD
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Saltiness, Salt Intake, Self Report, Diet Records
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