The experience of the Utah Professional Review Organization in conducting medical audit as a PSRO prototype, and later a PSRO, suggests that usage of diagnosis-oriented process audits, using criteria similar to those supplied by the American Medical Association, will result in accumulation of vast amounts of unusable data. Even studies based on outcome data may fail to change physician behavior substantially because of communication difficulties between the PSRO or hospital conducting the evaluation and the physicians subject to the audit. UPRO's experience suggests that medical audit can be made more effective if it employs a special study format that looks at a particular element of care, selected for its importance to patient welfare and potential for improvement. The study should be based on criteria solidly validated by clinical research, and should involve a direct and personal interaction between the review body and the physician being reviewed.
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