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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: J Cyst Fibros. 2020 Jun 13;20(3):492–498. doi: 10.1016/j.jcf.2020.06.002

Table 3:

Comparisons of ppFEV1 (decreases for screened vs. control arm from age 7 to age 26, stratified by age of first positive Pseudomonas aeruginosa culture

Screened
N=57		 Control
N=47
Age of first positive
Pseudomonas aeruginosa culture		 Slope1
(%/year)		 95% CI2 Slope1
(%/year)		 95% CI2 p-value3
≤2 years (N=12) 1.87 1.38–2.37 0.33 −008–0.73 <0.0001
>2 years (N=7 5) 1.74 1.54–1.94 2.22 1.94–2.51 <0.0001
≤5 years (N=39) 1.69 1.44–1.93 2.28 1.92–2.64 <0.0001
>5 years (N=48) 1.83 1.56–2.11 1.68 1.27–2.10 0.3890

ppFEV1 = percent predicted forced expiratory volume in 1 seconc

1

: Regression slope for decrease in ppFEV1 (%/year)

2

: 95% CI of regression slope

3

: Comparison of regression slope between Screened vs. Control