Analysis | CVLCI % | ||
Healthy (n=20) | CF (n=20) | PCD (n=17) | |
Standard | 4.7±3.5 | 5.7±2.5 | 7.1±3.8 |
Linear | 4.3±3.3 | 5.4±2.8 | 7.2±4.0 |
Fit-curve | 5.1±3.2 | 6.0±5.3 | 17.6±11.0*** |
1st breath | 4.6±3.1 | 5.1±2.5 | 5.3±3.2 |
Cmean | 5.4±3.7 | 5.3±2.9 | 5.9±3.7 |
Cmedian | 5.2±3.5 | 5.3±3.0 | 5.9±3.6 |
Data are presented as mean±sd. CF: cystic fibrosis; PCD: primary ciliary dyskinesia; linear: linear interpolation method; fit-curve: fitting-curve method; 1st breath: LCI calculated at the first breath below a cut-off; Cmean: mean expiratory nitrogen concentration; Cmedian: median expiratory nitrogen concentration. ***: p<0.001, paired t-test compared with standard analysis.