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. Author manuscript; available in PMC: 2021 Sep 16.
Published in final edited form as: Clin Neurophysiol. 2020 Apr 2;131(6):1187–1203. doi: 10.1016/j.clinph.2020.02.027

Table 2:

Description of PSG biomarkers. BD: breathing disturbance, PLM: periodic leg movement.

PSG Biomarkers
Name Description Mean ± Std
BDI BDs/h 26.1 ± 14.1
Ar-BDI (BDs w/ arousal)/h 7.6 ± 7.6
NonAr-BDI (BDs w/o arousal)/h 18.1 ± 9.1
Hyp-BDI (BDs w/ hypoxia)/h 11.3 ± 12.1
NonHyp-BDI (BDs w/o hypoxia)/h 14.8 ± 6.8
Ar-Hyp-BDI (BDs w/ arousal and hypoxia)/h 4.9 ± 6.8
Ar-NonHyp-BDI (BDs w/ arousal and w/o hypoxia)/h 2.7 ± 2.3
NonAr-Hyp-BDI (BDs w/o arousal and w/ hypoxia)/h 6.2 ± 6.5
NonAr-NonHyp-BDI (BDs w/o arousal and hypoxia)/h 11.9 ± 5.4
PLMI PLMs/h 11.4 ± 18.5
Ar-PLMI (PLMs w/ arousal)/h 2 ± 3.3
NonAr-PLMI (PLMs w/o arousal)/h 9.4 ± 16.5
ArI Arousals/h 21.9 ± 10
Spon-ArI (Spontaneous arousal)/h 12.4 ± 4.9
Me-Ar-Dur Median arousal duration (s) 9.5 ± 1.5
Me-BD-Ar-Dur Median BD arousal duration (s) 10.4 ± 5
Me-PLM-Ar-Dur Median PLM arousal duration (s) 12.3 ± 33.9
Me-Spon-Ar-Dur Median spontaneous arousal duration (s) 9.3 ± 2.3
TST Total Sleep Time (h) 6.7 ± 1
WASO Wake after sleep onset (h) 1 ± 0.7