米国成人の24時間の尿中のナトリウムとカリウム排出量
Mary E Cogswell1, Catherine M Loria2, Ana L Terry3
1National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia.
JAMA
|March 9, 2018
まとめ
24時間の尿サンプルから推定すると,米国では成人は1日平均3608mgのナトリウムを摂取しています. この研究は,将来のナトリウム摂取とその健康への影響に関する研究にとって重要な基準となる.
科学分野:
- 栄養学
- 公衆衛生
- 流行病学について
背景:
- インスティテュート・オブ・メディシンは,高尿排出率によるナトリウム摂取量を推定するために24時間の尿採取を推奨した.
- 以前の研究では,摂取したナトリウムの90%が尿で排泄されていることが示されました.
研究 の 目的:
- アメリカの成人の平均ナトリウム摂取量を推定する.
- 米国成人の尿中のカリウム分泌を記述する.
主な方法:
- 2014年に米国で20歳から69歳までの非施設の成人を対象に全国的に代表的な横断調査が行われました.
- 827人の参加者は少なくとも1つの24時間の尿サンプルを提供し,この成分に対する全体的な応答率は50%でした.
- 選択確率と非回答を考慮した複雑な調査設計を用いて,重み付けられた全国的な見積もりを計算した.
主要な成果:
- 尿による24時間の平均ナトリウム分泌量は3608 mg (95%CI,3414- 3803) であった.
- 男性の平均ナトリウム分泌量は女性 (3039 mg) よりも高かった.
- 尿による24時間の平均カリウム分泌量は2,155 mg (95%CI,2030~2280) であった.
結論:
- 2014年の米国成人の平均ナトリウム摂取量は3608mgでした.
- これらの発見は将来のナトリウム摂取量研究と公衆衛生評価の基準となる.
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