Application and Internal Validation of the Modified Glasgow-Blatchford Score for Early Triage of Acute Upper Gastrointestinal Bleeding.

The primary high-risk outcome was a composite of in-hospital blood transfusion, therapeutic endoscopy, surgery, or death.

Overall, 151 of 366 patients (41.26%) met the composite high-risk outcome, and 18 patients (4.92%) died during hospitalization.

The modified score classified 9 additional patients as low risk and reduced false-negative low-risk classifications from 5 cases to 2 cases.

Mortality discrimination was more favorable for the modified score, although this finding should be interpreted cautiously because only 18 deaths occurred.