Table 2.

Metrics of nocturnal respiration.

	Total Subanalysis Population
Total recording time, min	429 (405; 448)
Apnea–hypopnea index, per hour of recording	14.1 (6.9; 24.2)
Obstructive apnea index, per hour of recording	2.0 (0.8; 4.9)
Central apnea index, per hour of recording	2.0 (0.5; 6.9)
Oxygen desaturation index, per hour of recording	10.4 (4.4; 20.9)
Mean SpO2, %	92 (91; 93)
Min SpO2, %	83 (78; 86)
Sleep-disordered breathing (Apnea–hypopnea index ≥ 15/h), n (%)	198 (46)
Obstructive sleep apnea (Apnea–hypopnea index ≥ 15/h), n (%)	82 (19)
Central sleep apnea (Apnea–hypopnea index ≥ 15/h), n (%)	116 (27)

Data are presented as median (interquartile range) or absolute and relative frequencies. TRT: artifact-free total recording time.