Beyond AHI: An Interpretable Causal-Discovery-Guided Framework for Sleep Recovery in Connected Health

In three linesCausal framework for sleep recovery scoring from multimodal polysomnography. Uses DAG learning on two cohorts (MESA n=1540, MrOS n=825) to identify five physiological domains (respiratory burden, hypoxia, fragmentation, architecture, autonomic regulation). Sleep Recovery Score (SRS) achieves 2.5× stronger alignment with perceived recovery than standard AHI.

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