ArticleJournal of rhinology : official journal of the Korean Rhinologic Society2025
Changes in Prescription Patterns and Diagnostic Outcomes of Polysomnography After Insurance Coverage: A Multicenter Retrospective Study.
Article in Journal of rhinology : official journal of the Korean Rhinologic Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Guideline for the Management of Obesity in Adult Patients With Obstructive Sleep Apnea.Clinical and experimental otorhinolaryngology · 2026Guideline
- Airway Anatomy and Surgical Management in Obstructive Sleep Apnea.Clinical and experimental otorhinolaryngology · 2026Review
Corrections and comments
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Authors and funding
36 authors.
Funding
Abstract
BACKGROUND AND
objectivesIn June 2018, South Korea expanded insurance coverage for polysomnography (PSG) to improve diagnostic access for obstructive sleep apnea (OSA). This study investigated the impact of this policy by analyzing changes in PSG utilization and diagnostic outcomes.
methodsA multicenter retrospective study was conducted using data from 17 tertiary hospitals across South Korea. Patients aged ≥20 years who visited the hospitals for suspected OSA between 2015 and 2023 were included. The pre-coverage period was defined as 2015-2017, and the post-coverage period as 2019-2023. Demographics, PSG implementation rates, and apnea-hypopnea index (AHI) distributions were compared.
resultsA total of 29,055 patients were included (7,800 pre-coverage; 21,255 post-coverage). PSG utilization significantly increased from 51.3% to 74.4% (p<0.001). The proportion of female patients rose from 20.0% to 23.0%, and the mean age increased from 45.8 to 49.8 years (p<0.001). The average AHI increased from 31.2 to 35.3. The proportion of patients with severe OSA (AHI ≥30) rose from 42.8% to 48.8%, while cases with normal AHI (<5) declined from 11.6% to 8.3% (p<0.001).
conclusionThe 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.
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