We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......

Reflux Esophagitis and the Water Bed

Jerry Halpern, PhD
JAMA. 1987;258(13):1734. doi:10.1001/jama.1987.03400130048028.
Text Size: A A A
Published online


To the Editor.—  Wide reportage in the popular press of the letter by Kleinman and Plain1 has given the water bed industry heartburn. A representative of the National Waterbed Manufacturers Association, the industry's national trade association, asked me to review it.The correct P value2 is.051, not the reported "significant" P value of.035. This is only a careless mistake, but the letter is vague on many other important points.Were the cases that directed attention to water beds included in the study? This would be a more serious error. The minimal adjustment for it by deleting a single water bed user with reflux esophagitis increases the P value to.09. If only a subset of subjects with at least 2+ esophagitis was used, how was it chosen? The diagnosis of 2 + esophagitis is not clear-cut: "Erythema is difficult to distinguish from normal and friability depends on how hard you


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.