An Analysis of Nonconfirmation Rates

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Abstract
A review was conducted of the first 12 months' experience with a voluntary second opinion surgery consultation program. The program covers approximately 950,000 persons: employees of the city of New York, retirees, and their dependents. On a simple yes or no basis, the program's surgical nonconfirmation rate was 25%. More detailed analysis of consultants' narrative suggestions for patient care showed that a firm rejection of surgical intervention occurred in only 8% of the cases reviewed. Nonconfirmation rates were found to be unsatisfactory measures of program success in preventing potentially unnecessary surgery. Data from second surgical opinion programs should not be used to estimate the prevalence of unnecessary surgery in a community. The key benefit of such programs may be to facilitate and to encourage patient-physician communication. (JAMA242:2424-2427, 1979)