[Retracted] Analyzing the Treatment of Patients with Acute Exacerbation of COPD with the Aid of Intelligent Diagnosis Method

Table 3

Comparison of TCM main symptom scores of three groups before and after treatment (x ± s).

Symptoms	Group category	Before treatment	After treatment	z
Shortness of breath	Control group	4.73 ± 1.23	2.93 ± 1.01	−4.208	0.001
	TCM group	4.86 ± 1.15	2.43 ± 0.84	−4.326	0.001
	Combined group	4.76 ± 1.12	2.00 ± 0.76	−4.681	0.001
Cough	Control group	3.87 ± 1.28	3.07 ± 1.26	−2.972	0.003
	TCM group	4.50 ± 1.17	2.00 ± 1.33	−4.093	0.001
	Combined group	3.72 ± 1.28	1.79 ± 1.11	−3.938	0.001
Wheezing	Control group	4.67 ± 1.09	3.20 ± 1.25	−3.989	0.001
	TCM group	4.43 ± 1.00	2.93 ± 1.15	−3.666	0.001
	Combined group	4.28 ± 0.88	2.00 ± 0.53	−4.823	0.001
Expectoration	Control group	3.73 ± 1.36	2.87 ± 1.36	−3.127	0.001
	TCM group	3.07 ± 1.02	1.71 ± 1.18	−3.578	0.001
	Combined group	3.24 ± 0.99	1.10 ± 1.14	−4.490	0.001

Note: if it does not conform to normal distribution, rank-sum test is used.