Figure 4
From: Lung clearance index in adults with non-cystic fibrosis bronchiectasis
Scatterplots of forced expiratory volume in one second standardised residuals against multiple breath washout parameters. LCI = lung clearance index; LCIvent = specific ventilation inequality component of lung clearance index; LCIds = dead space component of lung clearance index; FEV1 = forced expiratory volume in one second; SR = standardised residuals. FEV1 SR are plotted against LCI (Panel A), LCIvent (Panel B) and LCIds (Panel C). Dotted lines denote the lower limit of normal for FEV1 and upper limits of normal for LCI, LCIvent and LCIds.