Table 5.

Changes of CCQ and SGRQ scores in subjects who successful quitted smoking fortwo months (n = 36)

	Baseline	2 months SC	p value
CCQ
Healthy smokers (n = 19)	0.6 (0.1–2.1)	0.3 (0.0–1.6) *	0.012
GOLD (0-III) (n = 17)	1.5 (0.5–4.7)	1.0 (0.2–3.0) *	0.035
SGRQ
GOLD (0-III) (n = 12)	27.0 (8.1–62.4)	23.9 (6.3–53.1)	0.433

SGRQ = St. George Respiratory Questionnaire. SC = smoking cessation. * p < 0.05. Wilcoxon U test.