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Arch Intern Med. 2002;162:32.

In the Special Article by Lloyd et al titled "Accuracy and Ambiguity in Counseling Patients About Genetic Risk," published in the November 12, 2001, issue of the ARCHIVES (2001;161:2411-2413), the color did not appear in Figure 1. Figure 1 is reprinted correctly here.

View larger version (29K): [in this window] [in a new window] Sensitivities, specificities, and positive and negative predictive values of genetic testing in 2 groups of patients with hemochromatosis. A, Patients with elevated transferrin iron saturation only. B, Patients with diabetes mellitus and elevated transferrin iron saturation. Blue and red marks indicate true positives; blue marks alone, false negatives; red marks alone, false positives; and no marks, true negatives. The pretest probability for patients with and without diabetes mellitus and elevated transferrin iron saturation is assumed to be 5% and less than 1%, respectively.