Electrocardiogram-based sleep analysis for sleep apnea screening and diagnosis.

Purpose: Despite the increasing number of research studies of cardiopulmonary coupling (CPC) analysis, an electrocardiogram-based technique, the use of CPC in underserved population remains underexplored. This study aimed to first evaluate the reliability of CPC analysis for the detection of obstructive sleep apnea (OSA) by comparing with polysomnography (PSG)-derived sleep outcomes.

Methods: Two hundred five PSG data (149 males, age 46.