Study design (if review, criteria of inclusion for studies)
randomised, open, cross-over trial
Participants
26 subjects with CF
Interventions
spirometry with and without an in-line filter
Outcome measures
lung function
Main results
The filter had no significant effect on spirometric parameters nor was there any order effect. Measurement error was unrelated to the magnitude of the measurement.
Authors' conclusions
In-line microaerosol filters do not affect spirometric values or variability in children with CF.
Keywords: Adolescent; Child; nebuliser; non pharmacological intervention - devices OR physiotherapy;