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A controlled trial to decrease the unnecessary use of diagnostic tests.

S V Williams, J M Eisenberg

    Journal of General Internal Medicine
    |January 1, 1986
    PubMed
    Summary
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    A program aimed at reducing unnecessary inpatient diagnostic tests for residents did not significantly change testing habits. The study found substantial overuse of tests, influenced by factors beyond the educational intervention.

    Area of Science:

    • Medical Education
    • Health Services Research
    • Diagnostic Testing

    Background:

    • Unnecessary inpatient diagnostic testing represents a significant healthcare cost and potential patient harm.
    • Medical residents' testing practices are a key area for intervention to improve healthcare efficiency.
    • Previous interventions have focused on education, but their effectiveness in reducing overuse needs further evaluation.

    Purpose of the Study:

    • To evaluate a multifaceted program designed to decrease the unnecessary use of inpatient diagnostic testing by medical residents.
    • To assess the impact of education, concurrent feedback, and resident involvement on testing patterns.

    Main Methods:

    • A controlled trial was conducted in a university medical center.
    • The intervention included education, concurrent feedback, and resident participation in program planning.

    Related Experiment Videos

  • A total of 7,891 chart audits of patients with repeat tests within seven days were analyzed over two years, involving 87 residents.

    • Main Results:

    • No significant differences in inpatient testing were observed between the intervention group and control.
    • The study identified substantial overuse of diagnostic tests, varying across hospital settings.
    • The implemented program was insufficient to overcome powerful counteracting influences on testing behavior.

    Conclusions:

    • Educational interventions alone may not be sufficient to curb the overuse of diagnostic tests among residents.
    • Powerful systemic or practice-based influences counteract efforts to reduce unnecessary testing.
    • Future research should explore alternative interventions and utilize control groups and chart audits for robust evaluation.