Table 3 Pearson correlation coefficients and intraclass correlation coefficients (ICC) between the spirometric values obtained with the two spirometers, for the entire dataset (202 patients)

0.951

 < 0.001

0.951 (0.935–0.962)

 < 0.001

0.925

 < 0.001

0.924 (0.901–0.942)

 < 0.001

0.934

 < 0.001

0.933 (0.913–0.949)

 < 0.001

0.864

 < 0.001

0.863 (0.824–0.895)

 < 0.001

0.872

 < 0.001

0.875 (0.838–0.904)

 < 0.001

0.913

 < 0.001

0.913 (0.887–0.933)

 < 0.001

0.888

 < 0.001

0.888 (0.855–0.914)

 < 0.001

0.774

 < 0.001

0.774 (0.712–0.824)

 < 0.001