Abstract T P164: New ABC (Age, Blood Pressure, and Clinical Features) Score Can Predict Early Ischemic Stroke After Transient Ischemic Attack

Background and Purpose: Several clinical scales, such as the ABCD2 score, were developed for predicting early stroke after transient ischemic attack (TIA). We aimed to derive a new score from our TIA registry. Methods: The PROMISE-TIA registry was a multicenter prospective study in Japan. From June 2011 to December 2013, 1353 patients within 7 days of TIA onset were enrolled. Among them, we analyzed 1277 patients (822 men, 69.5 ± 12.4 years) who completed followed-up at 90 days after TIA onset. The components of the score were determined by the multivariate Cox proportional hazards model. We included them into the analysis if the p-value was under 0.1. The accuracy of our score was compared to that of the ABCD2, ABCD3, and ABCD3-I scores by using the C-statistics. Results: Cox hazard model showed that age≧80 years (HR: 1.91; 95%CI: 0.95-3.61, p=0.069), systolic blood pressure (SBP)≧160 or diastolic blood pressure (DBP)≧90 at presentation (HR: 4.05; 95%CI: 2.01-9.05, p Conclusions: Our ABC score can be useful for predicting risk of ischemic stroke within 7 days and 90days after TIA onset.