Table 3

Correlations between lung function parameters and CT subscore parameters

	Total CFCT score (%)	Subscores
	Total CFCT score (%)	Bronchiectasis	Airway wall thickening	Mucus plugging	Parenchymal consolidation	Air trapping (n=24)
MBW
LCI z-score	0.800**	0.494**	0.809**	0.720**	0.362*	0.263
s_cond×V_T z-score	0.276	0.276	0.120	0.313	0.043	0.380
s_acin×V_T z-score	0.361*	0.246	0.358	0.301	−0.27	0.134
Spirometry
FEV₁ z-score	−0.632**	−0.355	−0.565**	−0.481**	−0.298	−0.399
FEF_25–75 z-score	−0.463 **	−0.185	−0.518**	−0.31	−0.256	−0.368
FEV₁/FVC z-score	−0.336	−0.041	−0.493**	−0.269	−0.273	−0.078

Significant correlations (Spearman correlation coefficients) are marked in bold; **p<0.01, *p<0.05.
LCI, Lung Clearance Index; MBW, multiple breath washout; V_T, tidal volume.