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Table 2 Pearson correlation coefficients and intraclass correlation coefficients (ICC) between the spirometric values obtained with the two spirometers, for the entire dataset (200 patients)

From: Validation of the portable Bluetooth® Air Next spirometer in patients with different respiratory diseases

 

Pearson correlation

ICC

FEV1(L)

0.976

0.976

FVC (L)

0.963

0.962

FEV1/FVC

0.947

0.945

FEF25–75%

0.953

0.948

PEF (L/sec)

0.922

0.922

MEF25%

0.909

0.906

MEF50%

0.944

0.942

MEF75%

0.946

0.942

  1. *for all metrics p < 0.001