Incorrect Data: In the Original Contribution entitled “Incidence of Death and Acute Myocardial Infarction Associated With Stopping Clopidogrel After Acute Coronary Syndrome” published in the February 6, 2008, issue of JAMA (2008;299[5]:532-539), some numbers were incorrectly reported. On page 532, in the fourth line of Results section in the abstract, the mean (SD) duration of clopidogrel treatment among medically treated patients should be “278 (169) days.” Also in the Results section in the abstract, line 12, the mean (SD) duration of clopidogrel treatment among patients treated with percutaneous coronary intervention should be “302 (151) days.” On page 535, column 1, second full paragraph under the heading “Medically Treated Patients With ACS,” line 3, the mean (SD) age should be “68.5 (11.7) years.” Also in that paragraph, line 10, the mean (SD) duration of clopidogrel therapy following hospital discharge among medically treated patients should be “278 (169) days” and the median should be “281 days.” On page 536, column 1, line 12, the mean (SD) duration of clopidogrel therapy following hospital discharge should be “302 (151) days” and the median should be “310 days.” On page 537, Table 3, in the eighth row in the table, “Acute myocardial infarction outcome only,” the value in the second column under “No. of Patients” should be changed from “158” to “1568.” The next row in the table, “Treated with percutaneous coronary intervention,” the value in the second column under “No. of Patients” should be changed from “1568” to “1569.”