Age-related modification of the association between arterial blood pH and intensive care unit mortality: a nationwide retrospective observational study using the Japanese Intensive Care Patient Database (JIPAD)
The lowest arterial blood pH within the first 24 h of intensive care unit (ICU) admission is a widely used prognostic indicator in critically ill patients and is incorporated into multiple established prognostic models. Although older adults represent a growing proportion of ICU admissions and have reduced physiologica...