Skip to main content
. 2020 Aug 15;16(8):1255–1263. doi: 10.5664/jcsm.8482

Table 4.

Frequency of the MSLT, MWT, HSAT, and PSG per 100,000 persons by region: 2013–2016.

2013 2014 2015 2016 % Change 2013–2016
MSLT/MWT
 Overall 19.1 18.0 16.6 15.2 −20.5
 Northeast 16.1 14.1 11.5 11.1 −31.5
 Midwest 26.4 24.7 22.2 20.5 −22.4
 South 18.8 18.1 17.4 15.5 −17.7
 West 11.9 12.7 13.1 11.7 −2.4
HSAT
 Overall 92.9 126.6 154.8 202.2 117.5
 Northeast 93.4 133.5 175.9 199.3 113.3
 Midwest 65.5 111.6 148.1 175.8 168.5
 South 106.4 130.9 144.5 229.8 116.1
 West 100.6 126.1 155.6 173.4 72.4
PSG
 Overall 640.0 600.5 573.0 546.1 −14.7
 Northeast 564.6 475.3 432.7 423.4 −25.0
 Midwest 738.0 732.0 700.2 660.1 −10.6
 South 669.4 620.4 584.2 556.2 −16.9
 West 512.5 541.2 567.1 523.0 2.1

Values were age- and sex-adjusted to the 2016 census. HSAT = home sleep apnea test; MSLT = multiple sleep latency test; MWT = maintenance of wakefulness test; PSG = polysomnography.