A Pilot Study of Detecting Individual Sleep Apnea Events Using Noncontact Radar Technology, Pulse Oximetry, and Machine Learning

Table 1

Overview of participant demography and HSAT data.

	Average (SD)	Range (min, max)
(count)	14
female (count)	5
Age (years)	50.1 (14.1)	(20, 75)
BMI (kg/m^2)	30.3 (6.1)	(21.2, 39.6)
Recording duration (hours)	7.7 (1.0)	(5.9, 9.5)
REI	14.3 (14.0)	(0.5, 51.2)
HI	5.9 (6.2)	(0.1, 24.5)
OAI	7.3 (11.5)	(0.0, 44.0)
CAI	0.7 (1.0)	(0.0, 3.0)
MAI	0.5 (1.1)	(0.0, 3.5)
ODI	12.4 (11.2)	(0.3, 39.2)

N: number of participants; BMI: body mass index; REI: respiratory event index: HI/OAI/CAI/MAI: hypopnea/obstructive apnea/central apnea/mixed apnea index (number of hypopneas/obstructive apneas/central apneas/mixed apneas per hour of recording); ODI: oxygen desaturation index.