[Retracted] Nomogram Prediction Model Analysis of Risk Factors for Conversion to Thoracotomy after Thoracoscopic Resection of Lung Cancer and Prognostic Value of Lung Cancer

Table 2

Basic information of patients.

Item	Category	Group
		Conversion to thoracotomy ()	Thoracoscopic surgery ()
Gender	Male	4 (4.17%)	43 (44.79%)	0.213
	Female	4 (4.17%)	45 (46.88%)
Mean age (years old)				0.325
Smoking history	Yes	4 (4.17%)	36 (37.5%)	0.698
	No	4 (4.17%)	52 (54.17%)