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Relationship between the plasma ESR level and the percentage of time spent at a SpO2 below 90% in the obese group (BMI ≥25, N=43). In the obese group, the plasma ESR level was positively correlated with the percentage of time spent at a SpO2 below 90% (P=0.012; R2=0.148, correlation coefficient, β=0.387; 95% confidence interval, 0.036-0.276).
ESR: erythrocyte sedimentation rate; SpO2: oxygen saturation by pulse oxymetry.
