[Retracted] The Effect of CT-Guided Artificial Pneumothorax plus Thoracoscopy and Central Venous Catheterization on the Drainage Effect of Pediatric Empyema and Pulmonary Function

Table 6

Comparison of lung function between the two groups.

Group	Case (n)	FVC (%)			FEV1 (%)		FEV1/FVC		MVV (%)
		Before surgery		After surgery	Before surgery	After surgery	Before surgery	After surgery	Before surgery	After surgery
Control group	40	69.8 ± 13.3		86.6 ± 10.7	64.2 ± 11.4	85.1 ± 13.6	67.8 ± 17.5	81.5 ± 13.2	65.9 ± 16.4	80.5 ± 18.2
Study group	42	68.9 ± 12.6		91.8 ± 11.3	63.7 ± 10.5	92.4 ± 13.1	66.9 ± 8.1	90.7 ± 15.4	64.1 ± 14.2	88.9 ± 14.5
t		0.315	2.137		0.207	2.476	0.296	2.898	0.532	2.317
P		0.714	0.036		0.837	0.015	0.768	0.005	0.596	0.023