Salivary Aldosterone as a Biomarker for Obstructive Sleep Apnea: Diagnostic Performance and the Moderating Role of Mean Arterial Pressure-A Cross-Sectional Study.

Researchers measured morning salivary aldosterone in 67 adults with varying OSA severity and found it performed poorly as a standalone diagnostic marker, though mean arterial pressure appeared to moderate the relationship between OSA and aldosterone levels. Age independently predicted lower aldosterone, while the STOP-BANG questionnaire showed superior diagnostic performance.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.