Trends in sleep studies performed for Medicare beneficiaries

Objectives/Hypothesis

To quantify trends and characteristics of sleep studies performed for Medicare beneficiaries in the United States.

Study Design

Retrospective longitudinal study of the Centers for Medicare and Medicaid Services' Part B National Summary Data and Medicare Provider Utilization and Payment Data from 2000 to 2014.

Methods

Sleep study data were analyzed according to type of study performed, total expenditure amount, provider specialty, and geographic location.

Results

In 2014, 845,569 sleep studies were completed by 1.4% of Medicare beneficiaries for a total of $189 million. Since 2010, annual expenditures for sleep studies have declined, whereas the number of studies performed has increased by 9.1%. In 2014, polysomnography, split-night polysomnography, and unattended home sleep studies accounted for 40%, 48%, and 12%, respectively, of total sleep studies. This represents a dramatic growth in the number of unattended sleep studies performed since 2000, when they represented only 0.9%. Pulmonologists, independent diagnostic testing facilities, and neurologists are the top specialties that bill for sleep studies. Sleep medicine is a growing specialty and ranked fifth among providers, whereas otolaryngologists ranked eighth.

Conclusions

The healthcare burden of administering sleep studies is substantial, although the annual cost is declining. Unattended sleep studies contribute to decreasing costs and should be considered for patients who meet the correct indications.

Level of Evidence

4 Laryngoscope, 2017

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