TY - JOUR T1 - Evaluation of risk scores for risk stratification of acute coronary syndromes JF - Heart JO - Heart SP - 1019 LP - 1019 VL - 95 IS - 12 AU - A T Yan AU - R T Yan AU - S Jedrzkiewicz AU - S G Goodman Y1 - 2009/06/15 UR - http://heart.bmj.com/content/95/12/1019.1.abstract N2 - To the editor: We read with interest the study by Dr Gale and colleagues.1 We fully agree with the authors that age, heart rate and systolic blood pressure are among the most powerful prognosticators in acute coronary syndromes (ACS).2 3 However, we believe that several key points deserve clarification.First, by dichotomising continuous variables such as creatinine and Killip class (eg, Killip class II and IV would both be considered equivalent to “cardiac failure”), substantial prognostic information would be lost, so that performance of risk scores consisting of such variables would … ER -