Comparison of area under the receiver operating characteristic curves for shock index (SI) and rate over pressure evaluation (ROPE), n=81. Comparison of area under the receiver operating characteristic curves for shock index (SI) and rate over pressure evaluation (ROPE), n=81. Peter C Jenkins et al. Trauma Surg Acute Care Open 2017;2:e000112 © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.