Corrigendum to FEV1 Variability Helps Identify Patients with Cystic Fibrosis at Risk of Greater Loss of Lung Function [The Journal of Pediatrics (2016) 116–121] (The Journal of Pediatrics (2016) 169 (116–121.e2), (S0022347615009750), (10.1016/j.jpeds.2015.08.042))

The authors regret that in this paper predicting lung function decline we used change in best %pred FEV₁ from baseline to follow-up as the outcome. In retrospect, we should have used an outcome measure that did not include baseline lung function values. As a result, this calls into question whether the median deviation from the best %pred FEV₁ has the greatest predictive value for subsequent decline in lung function. Unfortunately, the data are not available to repeat the analysis to resolve this question. The authors would like to apologise for any inconvenience caused.