Changes in Prescription Patterns and Diagnostic Outcomes of Polysomnography After Insurance Coverage: A Multicenter Retrospective Study

The expansion of insurance coverage significantly improved PSG accessibility, particularly for older adults, women, and high-risk patients. The observed shift toward more severe diagnoses suggests enhanced detection of untreated OSA rather than overdiagnosis of mild or normal cases. These findings support the ongoing implementation of inclusive health policies while emphasizing the importance of appropriate patient selection.