In "Early Prediction of Antipsychotic Response in Schizophrenia" by Christoph U. Correll, M.D., et al. (Am J Psychiatry 2003; 160:2063–2065), the sentence in the Results section of the abstract on page 2063 should be as follows: "None of the patients who displayed an improvement of less than 20% in total BPRS score and only 5% of the patients who displayed a reduction of less than 20% in BPRS thought disturbance score after 4 weeks of treatment had been classified as responders at 1 week (i.e., 100% and 95% specificity)." This statement should also replace the first sentence in the Discussion section on page 2064. The second sentence in the second paragraph in the Results section on page 2064 should be replaced by the following sentence: "Conversely, meeting response criteria at the end of 1 week was not a good predictor of response at the end of the study; only 35% of patients who ultimately met response criteria at the end of the study had shown early reductions in the BPRS total score, and 53% of patients meeting response criteria at 4 weeks had shown a reduction greater than 20% in thought disturbance factor score."