Table 2 Apnea profile (n = 131)

Apnea episodes per patient, median (range)

2 (1–8)

Duration of the apnea episodes, median (IQR)

33 s (24–46)

 Maximum duration time of an apnea episode

97 s

Apnea episodes associated with SpO₂ decline by ≥4%, n (%)

55 (42.0)

 Maximum SpO₂ decline

19% in SpO₂

Time delay between the onset of an apnea episode and SpO₂ decline by ≥4%, median (IQR)

31 s (28–42)