Accuracy of PM in predicting AHI_PSG > 15 and > 30.

<p>Accuracy of PM in predicting AHI_PSG > 15 and > 30.</p

Modified Bland-Altman plot for AHI_PM and AHI_PSG.

<p>The difference between AHI_PSG and AHI_PM was plotted against AHI_PSG. Dark circles represent cases in which the central apnea index on portable monitoring was ≥ 5.</p

Plot versus criterion graph.

<p>This graph plots the sensitivity and specificity with 95% confidence intervals for different cutoff values of AHI_PM; the criterion was AHI_PSG ≥ 15.</p