[Retracted] Effect of Yifei-Huoxue Decoction Combined with Tiotropium on Inflammatory Cytokine Levels, Pulmonary Function, and Quality of Life in Patients with Chronic Obstructive Pulmonary Disease

Table 2

Patients’ inflammatory cytokine levels.

Observed indexes		Reference group (n = 49)	Study group (n = 49)	t	P
TNF- (ng/L)	Before treatment	34.22 ± 3.17	34.56 ± 3.20	0.528	0.599
	After treatment	29.45 ± 2.17	25.94 ± 2.15	8.043	<0.001
CRP (mg/L)	Before treatment	7.12 ± 0.85	7.10 ± 0.84	0.117	0.907
	After treatment	4.88 ± 0.52	3.46 ± 0.51	13.647	<0.001
IL-6 (ng/L)	Before treatment	70.85 ± 4.73	70.52 ± 4.52	0.353	0.725
	After treatment	51.06 ± 3.34	26.75 ± 3.29	36.291	<0.001