Figure 6 - Prevalence of GERD in adult asthmatics: GERD defined as the presence of any abnormal reflux parameter.
From the following article
Gastroesophageal reflux and asthma
Stephen J. Sontag and Susan M. Harding
GI Motility online (2006)
doi:10.1038/gimo47
Three prospective studies were performed at the same institution. Taken as a whole, 90% of asthmatics have at least one of the abnormal tests that are considered as indicative of GER. These data strongly indicate that GER is highly prevalent in adult asthmatics.
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