Comment on Mente, O'Donnell, Rangarajan, et al. "Associations of urinary sodium excretion with cardiovascular events in individuals with an without hypertension: a pooled analysis of data from four studies"

TL;DR

This paper critiques a previous study on urinary sodium excretion and cardiovascular events, highlighting potential bias that could invalidate the original findings.

Contribution

It identifies a possible bias in the original analysis, questioning the validity of the reported association between sodium intake and cardiovascular risk.

Findings

Potential bias may affect the original study's conclusions

Original anticorrelation between sodium excretion and cardiovascular events is questionable

Highlights importance of bias assessment in epidemiological studies

Abstract

Mente, O'Donnell, Rangarajan, et al. ignore a possible source of bias that may invalidate their finding of an anticorrelation between sodium intake and cardiovascular events