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Correlations of HbA1c levels with AHI (A), AI (B), average SpO2 (C) and percentage of sleep time with SpO2< 90% (D).
Abbreviations: AHI, Apnea Hypopnea Index; AI, Arousal Index; HbA1c, glycosylated hemoglobin; SpO2, saturation of hemoglobin with oxygen as measured by pulse oximetry.
