[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 5

Single-factor analysis of conversion to thoracotomy (pathological condition).

Item	Category	Total	Group
			Conversion to thoracotomy ()	Thoracoscopy ()
Interlobular cleft development	Fully developed	58 (60.42%)	3 (3.13%)	55 (57.29%)	21.354	<0.001
	Hypoplasia	38 (39.58)	5 (5.21%)	33 (34.38%)
Pleural adhesions	Yes	29 (30.21%)	6 (6.25%)	23 (23.96%)	5.38	<0.001
	No	67 (69.79%)	2 (2.08%)	65 (67.71%)
Postoperative chemotherapy	Yes	53 (55.21%)	4 (4.17%)	49 (50%)	3.577	0.534
	No	43 (44.79%)	4 (4.17%)	39 (40.63%)
Tumor diameter	> 3.5 cm	27 (28.13%)	5 (5.21%)	22 (22.92%)	11.231	<0.001
	≤3.5 cm	69 (71.87%)	3 (3.13%)	66 (68.75%)
Tumor location	Left lung	48 (50%)	4 (4.17%)	44 (45.83%)	9.289	0.786
	Right lung	48 (50%)	4 (4.17%)	44 (44.79%)
Vascular and lymph node involvement	Yes	35 (36.46%)	3 (3.13%)	32 (33.33%)	4.321	0.023
	No	61 (63.54%)	5 (5.21%)	56 (58.33%)
Histologic morphology	Squamous cell carcinomas	23 (23.96%)	1 (1.04%)	22 (22.92%)	7.391	0.112
	Adenocarcinoma	60 (62.5%)	3 (3.13%)	57 (59.38%)
	Large-cell carcinoma	13 (13.54%)	4 (4.17%)	9 (9.38%)
Degree of tissue differentiation	Low differentiation	24 25%)	2 (2.08%)	22 (22.92%)	6.488	0.068
	Medium differentiation	42 (43.75%)	2 (2.08%)	40 (41.67)
	High differentiation	30 (31.25%)	4 (4.17%)	26 (27.08)
TNM stage	I	16 (16.67%)	1 (1.04%)	15 (15.63)	6.023	0.018
	IIa	20 (20.83%)	2 (2.08%)	18 (18.75%)
	IIb	33 (34.38%)	3 (3.13%)	30 (31.25%)
	IIIa	27 (28.13%)	2 (2.08%)	25 (26.04%)