Supplementary material

Supplementary material

Please note: supplementary material is not edited by the Editorial Office, and is uploaded as it has been supplied by the author.

• Supplementary material
• Supplementary figure E1 - Coefficients of variation for FEV₁/FVC, FEV_0.75/FVC and FEV_0.5/FVC ratios calculated for each age class and represented separately for girls (upper panel) and boys (lower panel).