Table 1—

Forced expiratory volume in one second (FEV1) % pred by weight for age percentiles for overall Europeam Epidemiologic Registry of Cystic Fibrosis patient population aged >6 yrs

Weight for age percentilePatients contributing valid FEV1 values n(FEV1) % pred
Mean95% CI
<6176752.050.7–53.3
6–<23183964.062.8–65.1
23–<50167773.272.1–74.3
≥50172178.277.1–79.3
  • CI: confidence interval