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. Author manuscript; available in PMC: 2022 May 21.
Published in final edited form as: Pediatr Pulmonol. 2021 Jan 12;56(5):823–836. doi: 10.1002/ppul.25248

FIGURE 4.

FIGURE 4

Lung function decline by age and baseline ppFEV1.Panel A. Mean rates of ppFEV1 decline by age group. Overall rates (open circles) and rates stratified by baseline ppFEV1 category (filled circles) adjusted for other risk factors are shown. Adapted with permission from the Journal of Pediatrics and the Journal of CysticFibrosis.14,33Panel B. Average changes in ppFEV1 around age 18years by ppFEV1 category adjusted for other risk factors. Adapted with permission from Pediatric Pulmonology.30ppFEV1, percent predicted forced expiratory volume in 1 s