The fourth sentence of the Results section of the abstract in the article on pages 658–66 in the April 2006 issue of Anesthesiology contained a numerical error. The sentence should have read as follows:

The threshold of mean daily value of S100B predicting a poor outcome at 6 months was 0.4 μg/l (sensitivity = 0.50 [95% confidence interval (CI), 0.29–0.71], specificity = 0.87 [95% CI, 0.76–0.95]).

Weiss N, Sanchez-Peña P, Roche S, Beaudeux JL, Colonne C, Coriat P, Puybasset L: Prognosis value of plasma S100B protein levels after subarachnoid aneurysmal hemorrhage. Anesthesiology 2006; 104:658–66