Red blood cell distribution width to serum albumin ratio index and its association with all-cause mortality in obstructive sleep apnea patients with critical illness comorbidity: A retrospective study using the MIMIC-IV database

Key Points

• Mortality is significantly associated with the red blood cell distribution width to serum albumin ratio index in these patients.
• Specifically, those with higher ratios exhibit increased all-cause mortality rates, suggesting a critical intervention metric.
• Analysis using the MIMIC-IV database allows for robust insights across a diverse population of critically ill individuals.
• Findings highlight the need for further exploration of these biomarkers to guide treatment in sleep apnea comorbidities.