CT-guided placement of microcoil end in the pleural cavity for video-assisted thoracic surgical resection of ground-glass opacity: a retrospective study

Table 3 Comparison of CT puncture complications between two groups

		Intracavity group(n = 78)	Extracavity group(n = 69)	Statistic	p value
Pneumothorax	Mild	18	18	χ² = 0.077	0.781
	Severe	3	2
	No	57	49
Intrapulmonary hemorrhage	Mild	17	29	χ² = 5.202	0.023^*
	Severe	5	3
	No	56	37
Chest pain	Mild	12	19	χ² = 7.104	0.008^*
	Moderate	3	7
	Severe	0	1
	No	63	42
Microcoil displacement	Drop	1	8	χ² = 6.774	0.013^**
Microcoil displacement	No	77	61	χ² = 6.774	0.013^**

^**Fisher’s exact probability method was adopted, P value is less than 0.05, showing statistical difference; ^*P value is less than 0.05, showing statistical difference

ISSN: 1749-8090