Table 2.

Multivariable linear regression analysis

	%Bronchiectasis school age			FEV1% predicted school age			CFQ‐R school age
	Estimate	95% CI	P	Estimate	95% CI	P	Estimate	95% CI	P
%Disease preschool	1.18	0.82 to 1.54	<.001	−2.12	−7.35 to 3.10	.42	−1.57	−6.19 to 3.05	.50
%MUPAT preschool	1.58	1.12 to 2.03	<.001	−3.45	−10.20 to 3.30	.31	−2.09	−8.03 to 3.86	.49
Cross‐sectional analysis
%Disease school age	NA	NA	NA	−2.79	−4.98 to −0.60	.01	−2.81	−4.82 to −0.80	.007

Note: A multivariable linear regression was used, where we corrected for the CT‐scanner used at preschool age and for the age at school age.

Abbreviations: CF, cystic fibrosis; CI, confidence interval; CT, computed tomography; CFQ‐R, CF quality of life revised; FEV1, forced expiratory volume 1; NA, not available.