From: Lung flute improves symptoms and health status in COPD with chronic bronchitis: A 26 week randomized controlled trial
Control group
Score
2 weeks
14 weeks
26 weeks
Total
-1.71
-2.60#
-1.85
Symptom domain
-3.6*
-1.3
-2.8
Impact domain
-1.88
-3.1
-1.9
Activity domain
-0.81
-3.36
-1.2