Evaluation of the Caprini Model for Venothromboembolism in Esophagectomy Patients Philip D. Hewes, BSE, Krista J. Hachey, MD, Xue Wei Zhang, BS, Yorghos Tripodis, PhD, Pamela Rosenkranz, BSN, MEd, Michael I. Ebright, MD, David McAneny, MD, Hiran C. Fernando, MBBS, Virginia R. Litle, MD The Annals of Thoracic Surgery Volume 100, Issue 6, Pages 2072-2078 (December 2015) DOI: 10.1016/j.athoracsur.2015.05.098 Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions
Fig 1 Risk assessment model scores composed of weighted sum of each patient’s risk factors are displayed on x-axis, whereas bars representing frequencies of patients are plotted on y-axis, stratified by venous thromboembolism (VTE) status. Net VTE incidence, defined as proportion occurring at or less than specified Caprini score to total number of patients at or below same score, is shown in gray. The Annals of Thoracic Surgery 2015 100, 2072-2078DOI: (10.1016/j.athoracsur.2015.05.098) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions
Fig 2 Receiver operating characteristic curve with Caprini score as predictor and 60-day venous thromboembolism event as response, with 95% confidence intervals (CIs) for sensitivity and “1 – specificity.” Dashed line represents line of no discrimination. Points are labeled with corresponding Caprini score thresholds reflecting range of scores observed (8– 21). For thresholds 8 to 15, 95% CIs were not graphed because of overlap—all sensitivity 95% CIs were 1.0 to 1.0, whereas “1 – specificity” 95% CIs were as follows: 8, 1.00 to 1.00; 9, 0.92 to 1.00; 10, 0.88 to 1.00; 11, 0.73 to 0.92; 12, 0.68 to 0.88; 13, 0.53 to 0.77; 14, 0.35 to 0.60; and 15, 0.22 to 0.45. The Annals of Thoracic Surgery 2015 100, 2072-2078DOI: (10.1016/j.athoracsur.2015.05.098) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions