Fig. 1From: Waist-hip ratio is an independent predictor of moderate-to-severe OSA in nonobese males: a cross-sectional studyCorrelation analysis of WHR with indicators of severity of OSA (including panel A: AHI, panel B: AI, panel C: LSpO2, panel D: ODI, and panel E: HI) in Group D (WHR < 0.9 and BMI < 28 kg/m2). AHI: Apnea–hypopnea index; AI: Apnea index; HI: Hypopnea index; LSpO2: Lowest oxygen pulse saturation; ODI: The oxygen desaturation indexBack to article page