... Nakasone Y, Ikeda O, Yamashita Y, Kudoh K, Shigematsu Y, Harada K: Shock index correlates with extravasation on angiographs of gastrointestinal hemorrhage: a logistic regression analysis Cardiovasc ... data analysis and drafted the manuscript NS participated in the design of the study, acquisition of data, and data analysis for the development set KH and LC participated in acquisition of data ... hospital databases, and their medical records were obtained for data abstraction Patients were excluded if they were less than 18 years of age, if they were directly admitted from a physician's office...