7. Conventional chest physiotherapy (CCPT) versus Flutter device: change in adherence score from baseline – Sontag 2010.

Visit	CCPT		Flutter device		HFCWO		P value
	Mean change (IQR)	n	Mean change (IQR)	n	Mean change (IQR)	n
1	16% (0% to 38%)	42	16% (0% to 38%)	42	19% (0% to 50%)	55	0.56
5	6% (−25% to 38%)	23	16% (−19% to 38%)	30	25% (0 to 56%)	47	0.09

CCPT: conventional chest physiotherapy; HFCWO: high‐frequency chest wall oscillation; IQR: interquartile range; n: number.
P values describe differences between all 3 therapies.