A preliminary clinical scale to predict the risk of in-hospital death after carotid endarterectomy Susanna L. Matsen, MD, Bruce A. Perler, MD, MBA, David C. Chang, PhD, MPH, MBA Journal of Vascular Surgery Volume 42, Issue 5, Pages 861-868 (November 2005) DOI: 10.1016/j.jvs.2005.08.005 Copyright © 2005 The Society for Vascular Surgery Terms and Conditions
Fig 1 Elimination of initial 582 International Classification of Diseases-9th revision (ICD-9) codes down to four statistically significant codes for the prediction of perioperative death after carotid endarterectomy. Journal of Vascular Surgery 2005 42, 861-868DOI: (10.1016/j.jvs.2005.08.005) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions
Fig 2 Evolution of predictive index. CEA, Carotid endarterectomy; ROC, receiver operating characteristics. Journal of Vascular Surgery 2005 42, 861-868DOI: (10.1016/j.jvs.2005.08.005) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions
Fig 3 Risk of perioperative death vs index score. Journal of Vascular Surgery 2005 42, 861-868DOI: (10.1016/j.jvs.2005.08.005) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions
Fig 4 Risk of perioperative death after carotid endarterectomy vs index score. Journal of Vascular Surgery 2005 42, 861-868DOI: (10.1016/j.jvs.2005.08.005) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions
Fig 5 Expected vs observed number of perioperative deaths. Journal of Vascular Surgery 2005 42, 861-868DOI: (10.1016/j.jvs.2005.08.005) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions
Fig 6 Scatter plot of observed vs expected deaths for index scores. Journal of Vascular Surgery 2005 42, 861-868DOI: (10.1016/j.jvs.2005.08.005) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions