A new study by a team of University of Southern California researchers claims that children exposed to poor air quality are at greater risk of (self-reported) bronchitis symptoms than are adults. But this health claim is tenuous.
Published in the American Journal of Respiratory and Critical Care Medicine, the study uses data sets from a 30-year-old Southern California Children’s Health Study cohort—with a long length of time between exposure and presumed response of self-reported bronchitis.
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