FIGURE 1.

Comparison of change of lung function parameters in patients with cystic fibrosis over the lockdown period and over a comparable time period in the year before the pandemic in a, b) the entire study group, according to c, d) age group (<18 years of age and ≥18 years of age) and e, f) Pseudomonas aeruginosa (Psa) infection status (patients chronically and not chronically infected with Psa). Changes in forced expiratory volume in 1 s (FEV₁) % predicted and forced vital capacity (FVC) % predicted are displayed as means and 95% confidence intervals.