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It was not my intention to give the water bed industry heartburn; rather, I had planned to raise their heads a bit.My feeling that water bed usage is associated with reflux esophagitis was a clinical observation. Communications from patients and gastroenterologists that I have received since publication of the letter have further supported this belief.Our study was done in an effort to obtain some very preliminary data in evaluation of this possible association. We regret the error in the P value. The criterion of 2+ esophagitis was employed because, in my own experience of more than 5000 esophagogastroscopies, I have been impressed that the grading "2 + " can be clearly distinguished from normal. The criterion of 2 + esophagitis was selected before review of the data. Patients using water beds at the time of their gastroenterological evaluation were considered water bed users. Some of the patients on whom
Kleinman MS. Reflux Esophagitis and the Water Bed-Reply. JAMA. 1987;258(13):1734. doi:10.1001/jama.1987.03400130048029