Andrew K. Diehl, MD
To the Editor: Friedman and colleagues (1) are to be congratulated for their sophisticated decision analysis of the management of asymptomatic gallstones in diabetic patients. The validity of any decision analysis, however, depends on the validity of the probabilities assigned to the chance nodes. Unfortunately, the authors' estimates of the mortality related to elective cholecystectomy differ markedly from widely accepted values, especially for the younger age groups. Their estimated mortality rate of 1 % for a 30-year-old woman, for example, is 20 times that used in a related decision analysis (2). Similarly, the rate assigned to 30-year-old men is off
Diehl AK. Asymptomatic Gallstones in Diabetic Patients. Ann Intern Med. ;110:1033–1034. doi: 10.7326/0003-4819-110-12-1033
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Published: Ann Intern Med. 1989;110(12):1033-1034.
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