Figure 3From: Validation of overnight oximetry to diagnose patients with moderate to severe obstructive sleep apnea Bland-Altman plots of AHI vs ODI parameters after linear regression analysis in dataset 1: (a) yODI4A_3_2=0.888×ODI4A-0.150×ODI3+0.168×ODI2+6.252, R 2 =0.881 and (b) yODI4A_4T_3_2=0.914×OD I4A-0.376×ODI4T+0.477×ODI3-0.004×ODI2+6.898, R 2 =0.882. Back to article page