[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 2

Comparison of general parameters and postoperative recovery indicators between the two groups.

Group	Case (n)	Operation time (min)	Intraoperative blood loss (ml)	Length of hospital stay after surgery (d)	Postoperative drainage volume (ml)	Exposure to the operative field
						Complete	Incomplete
Control group	40	91.2 ± 6.9	84.2 ± 10.5	5.8 ± 1.2	497.3 ± 20.6	13	27
Study group	42	66.9 ± 7.8	69.7 ± 9.7	5.4 ± 0.8	406.9 ± 15.2	32	10
t/χ^2		14.914	6.5	1.767	22.838	15.79
P		0.000	0.000	0.082	0.000	0.000