PEDIATRICS Vol. 59 No. 6 June 1977, pp. 821-826
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Changes in Tonsillectomy Rates Associated With Feedback and Review

John E. Wennberg M.D.1, Lewis Blowers M.D.1, Robert Parker M.D.1, and Alan M. Gittelsohn Ph.D.1

1 Harvard School of Public Health, Boston; Copley Hospital, Morrisville, Vermont; and The Johns Hopkins School of Hygiene, Baltimore

Among 13 Vermont Hospital Service Areas, tonsillectomy rates decreased over a five-year period. In 1969, the rates in seven areas exceeded the estimated United States national rate; by 1973, the average rate for all areas had declined 46% and only one area remained above the U.S. rate. Much of the change occurred after feedback of data to the Vermont State Medical Society demonstrating 1969 variations. In 12 of the 13 areas, the relationship between feedback and change in clinical practices could not be documented; however, physicians in the area with the highest rate reviewed the indications for tonsillectomy and adopted a second opinion procedure for reviewing candidates for the surgery. The experience suggests that feedback of population-based data on incidence of procedures may be a valuable tool for the peer review process.

Submitted on June 22, 1976
Accepted on September 22, 1976




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