Fig. 2From: Point-of-care prediction model of loop gain in patients with obstructive sleep apnea: development and validationPredicted loop gain (linear regression model) versus the reference loop gain (raw signal analysis) based on the test set data. The blue solid line shows the mean reference loop gain for a predicted loop gain and its 95%-confidence interval, which includes the dotted line of identity (i.e., no bias). The red dashed lines show the 95%-prediction intervalBack to article page