Comparison of Respiratory Resistance Measurements Made with an Airflow Perturbation Device with Those from Impulse Oscillometry
Figure 6
Strong linear correlation is observed between the IOS R5 measurements and the APD measurements () (a) as well as a strong proportional relation (), shown in the Bland-Altman diagram (b). The dotted line represents ±1.96 standard deviation; the solid line represents the mean of the differences.
