The Shock Index is not accurate at predicting outcomes in patients with upper gastrointestinal bleeding.

The Shock Index performed poorly with AUROCs <0.66 and was inferior to existing pre-endoscopy scores at predicting major clinical endpoints after UGIB. We found no clear evidence that the Shock Index is clinically useful at predicting outcomes in UGIB. [Correction added on 20 December 2019, after first online publication: Summary section has been changed for clarification.].