Research Article

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

Table 10

Comparison of lung function among three groups before and after treatment (‾x ± s).

Lung functionGroupsBefore treatmentAfter treatmentt/z

FEV1%Control group52.75 ± 17.8855.55 ± 14.92−2.5170.018
Chinese medicine group53.33 ± 17.9159.92 ± 14.55−3.9030.001
Combined group52.96 ± 17.5768.47 ± 10.37−3.7730.000

FEV1/FVCControl group56.96 ± 7.9057.78 ± 7.46−2.5650.016
Chinese medicine group56.72 ± 6.9860.65 ± 4.31−6.8340.001
Combined group56.31 ± 6.4963.95 ± 4.03−4.7050.000

Note: if the normal distribution was met, the t-test was used. Otherwise, the rank-sum test was used (with being the rank-sum test).