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Related Experiment Videos

Changes in tonsillectomy rates associated with feedback and review

J E Wennberg, L Blowers, R Parker

    Pediatrics
    |June 1, 1977
    PubMed
    Summary

    Tonsillectomy rates in Vermont hospitals significantly decreased by 46% over five years. This decline followed the feedback of surgical procedure data to physicians, suggesting its value in peer review.

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    Area of Science:

    • Healthcare Policy
    • Surgical Outcomes
    • Public Health

    Background:

    • Tonsillectomy rates varied significantly across Vermont hospital service areas in 1969.
    • Several areas exceeded the estimated United States national average for this procedure.

    Purpose of the Study:

    • To analyze trends in tonsillectomy rates across Vermont hospital service areas over a five-year period.
    • To investigate the impact of data feedback on surgical practice variations.

    Main Methods:

    • Comparative analysis of tonsillectomy rates across 13 Vermont hospital service areas from 1969 to 1973.
    • Evaluation of the correlation between data feedback to the Vermont State Medical Society and changes in clinical practices.

    Main Results:

    • A 46% average decline in tonsillectomy rates was observed across all areas by 1973.
    • Only one area remained above the U.S. national rate by 1973, compared to seven in 1969.
    • Specific practice changes, including reviewing indications and adopting second opinions, were noted in the highest-rate area following data feedback.

    Conclusions:

    • Feedback of population-based data on procedure incidence can be an effective tool for peer review.
    • Data transparency may influence physician behavior and lead to reduced surgical rates.
    • Further research is needed to fully document the link between data feedback and clinical practice changes in most areas.

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