Study design (if review, criteria of inclusion for studies)
Randomised controlled trial. Cross-over design.
Participants
19 participants, all completed. Ages: 13 years (10-18 years). Mean (SD) age: CCPT: 12.6 years (4.2); FET: 11.8 years (3). 3 excluded from analysis due to non-compliance, mild to moderate disease.
Interventions
CCPT versus PEP.
Outcome measures
PEFR, FEV 0.75, FVC, sputum volume, Schwachman but not reported.
Main results
No difference was shown in symptom scores, sputum production, or simple lung function tests. The mask was well accepted and allowed independent treatment by older patients.