Hydration Choices, Sugary Beverages, and Kidney Injury in Agricultural Workers in California.
Sally Moyce, Diane Mitchell, Alondra Vega and 1 others
PMID 32391966WHAT IT FOUND
Sugary drinks were not linked to acute kidney injury in farm workers.
Total fluid intake and picking work were associated with more kidney injury, but this one-day study cannot show cause.
Key findings
01Any stage acute kidney injury was identified in 66 of 445 workers (14.8%).
02Sugary beverage intake was not associated with acute kidney injury in the overall or sex-stratified adjusted models.
03Higher total fluid intake and picking work were each associated with higher odds of acute kidney injury (total fluid adjusted odds ratio 1.47, 95% confidence interval 1.09 to 1.99; picking adjusted odds ratio 2.51, 95% confidence interval 1.39 to 4.54).
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
This was a one-day convenience sample of farm workers, not a random sample, so it may not represent all workers. Kidney injury was estimated from creatinine change over one shift, and the authors note this may reflect volume depletion rather than structural damage. Beverage intake was estimated after the shift and grouped broadly, so the study could not isolate fructose or distinguish diet from regular soda. The study cannot show cause and effect; higher fluid intake may be a marker of harder work or greater heat exposure. Workers came from 29 farms, and the authors note possible non-independence among workers on the same farm.
Declared interests
The supplied text does not report an author conflict of interest statement. The publication types list research support from N.I.H. and other government sources.
The easy way to misread this
Do not conclude that sugary drinks caused acute kidney injury. The study found no statistically significant association between sugary drinks and AKI, and it measured only one workday, so it cannot show cause.