Usefulness of Home Overnight Pulse Oximetry in Patients with Suspected Sleep-Disordered Breathing

Figure 2

Receiver operating characteristic curves for oxygen desaturation index and percentage of recording with SpO₂ < 90% with thresholds. (a) AHI ≥ 10/h and (b) AHI ≥ 30/h, respectively. The discrimination degree between AHI ≥ 10/h and ODI3 (very good, AUC = 0.941) and ODI4 (excellent, AUC = 0.984) (a) and between AHI ≥ 30/h and ODI3 (very good, AUC = 0.911) and ODI4 (very good, AUC = 0.922) is shown. AHI: apnea-hypopnea index; ODIs: mean number of oxygen desaturations ≥3% and 4% (ODI3 and ODI4) per hour of recording; AUC: area under the curve.

(a)

(b)