Table 2.

Intragroup and intergroup comparison of CAT scores in the two groups

CAT score	YuPingFeng group	Placebo group	P-value
Baseline	15.13±7.50	15.13±6.88
52 weeks	10.30±6.31	12.95±5.99	<0.001
Difference value	−4.41±7.01	-2.49±5.31	0.001

Note: Data presented as mean ± SD.

Abbreviation: CAT, COPD assessment test.