borderline significancep = 0.052
A moderate positive correlation of the Haller index with the MRC-DS dyspnoea scale was demonstrated (r = 0.40), with borderline significance ( p = 0.052).
A moderate positive correlation of the Haller index with the MRC-DS dyspnoea scale was demonstrated (r = 0.40), with borderline significance ( p = 0.052).
An exception is the FEV1/FVC ratio, with which the Haller index and the correction index showed a weak positive correlation (r = 0.04) and the other a weak negative correlation (r = −0.06), although both did not reach statistical significance ( p = 0.848; p = 0.795).
Though the incentive spirometry group showed a trend towards shorter length of hospital stay (4.5 days vs. 5 days), and lower time to chest drain removal (3 days vs. 4 days) compared to the control group, both variables did not reach statistical significance ( p value 0.82 and 0.49, respectively).