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假设：人群内和人群间关于膳食盐与血压关系研究的差异：事实还是虚构？

Hypothesis: discrepancy between intra- and interpopulation studies of the relationship between dietary salt and blood pressure: fact or fiction?

作者信息

Omvik P

出版信息

Clin Exp Hypertens A. 1984;6(4):897-903. doi: 10.3109/10641968409044045.

DOI:10.3109/10641968409044045
PMID:6723093
Abstract

It is a paradox that intra-population studies fail to show significant correlation between sodium excretion and blood pressure while a clear relationship exists in cross-cultural studies. Since daily variation of sodium excretion is high, the discrepancy between the two observations could be due to non-comparable data on sodium excretion. This is a discussion of the hypothesis that the finding of a significant correlation or not between sodium excretion and blood pressure depends on the statistical analysis of the data.

摘要

这是一个悖论

群体内部研究未能显示钠排泄与血压之间存在显著相关性，而跨文化研究中却存在明确的关系。由于钠排泄的每日变化很大，这两个观察结果之间的差异可能是由于钠排泄数据不可比所致。本文讨论了这样一个假设，即钠排泄与血压之间是否存在显著相关性的发现取决于数据的统计分析。

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