Table 4.

Utility Values of Patients with Stable COPD^$.

	Pretherapy		After treatment for 6 months
	GOLD 1-2	GOLD 3-4	GOLD 1-2	GOLD 3-4
Western treatment group	0.660 ± 0.099	0.657 ± 0.099	0.691 ± 0.123	0.678 ± 0.105
TCM group	0.679 ± 0.108	0.641 ± 0.103	0.692 ± 0.107	0.702 ± 0.084
Combined group	0.697 ± 0.074	0.705 ± 0.094	0.709 ± 0.102	0.713 ± 0.121

^$Plus–minus values are means ± SD.