The association between acute gastrointestinal injury and mortality in elderly patients with gram-positive bacterial bloodstream infection in the intensive care unit: a retrospective 7-year study from a research hospital in China

AGI severity is an independent predictor of mortality in elderly GPB-BSI patients. The diagnostic accuracy for mortality improves when gastrointestinal dysfunction assessment is incorporated into the SOFA score. These findings underscore the critical need for enhanced clinical attention to gastrointestinal function protection in geriatric critical ill patients.