A check on the accuracy of methods in estimating sodium intake.

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  • NAGAYAMA Ikuko
    Department of Domestic Science, Tottori Women's Junior College
  • OSATO Shinko
    Department of Food and Nutrition, Higashichikushi Junior College
  • OZEKI Shizue
    Department of Food and Nutrition, Nakamura Gakuen College
  • KORA Harue
    Department of Domestic Science, lairan Women's Junior College
  • MATSUDA Tamiko
    Department of Domestic Science, Seika Women's Junior College
  • YASUTAKE Ritsu
    Department of Domestic Science, Kumamoto Women's University
  • WAKAHARA Nobuko
    Department of Domestic Science, Kagoshima Junshin Women's Junior College

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Other Title
  • ナトリウム摂取量の推定方法に関する検討
  • ナトリウム セッシュリョウ ノ スイテイ ホウホウ ニ カンスル ケントウ

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Description

A questionnaire survey on sodium intake was made in 33 female professional nutritionists. The answers to the questions were coded according to a numerical system of rating and the scores of each question were totaled individually (sodium intake score). Concurrently with the questionnaire, sodium content of meals consumed by the same subjects during a 3-day experimental period were determined by two methods: chemical analysis (analyzed value), and calculation using the Japanese Standard Food Composition Table: Supplement to the 3rd edition (calculated value). Twenty four-hour urine of the subjects during this period were also analyzed chemically (urinary sodium value).<BR>Analyzed, calculated and urinary sodium values were compared with each other and relationships between sodium intake scores and these three values were studied.<BR>The results obtained were as follows:<BR>1) The means of calculated, urinary sodium and analyzed values were 3, 806±753mg, 3, 527+868 mg and 3, 162±554mg, respectively.<BR>2) Significant correlation was observed only between sodium intake score and urinary sodium values (r=0.389, p<0.05).<BR>3) Differences in urinary sodium values according to the scores of each question were observed in the case of pickles, dried fish and heavy flavoring, but not in the case of soy bean soup, seasoning and instant noodle.

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