Table 3.

Relationship between clinical characteristics and pathological type

	Benign SFT		Malignant SFT		p value
	N	%	N	%
Total	58	82.9	12	17.1
Sex
Male	34	58.6	2	16.7
Female	24	41.4	10	83.3	0.008
Age, (mean ± SD)		51.8 ± 10.6		58.5 ± 14.8	0.018a
Smoking status
Smoker	17	29.3	0	0
Non-smoker	41	70.7	12	100	0.074
Symptom
Symptomatic	25	43.1	7	58.3
Asymptomatic	33	56.9	5	41.7	0.335
Localization
Pleura	35	60.3	8	66.7
Mediastinum	12	20.7	4	33.3
Others (lung, esophagus, diaphragm)	11	19	0	0	0.233b
Tumor size (mean ± SD)		8 ± 4.6		13.3 ± 10.2	0.05a
Tumor size category
< 10 cm	40	69	4	33.3
≥ 10 cm	18	31	8	66.7	0.046a
Surgical approach
VATS	24	41.4	0	0
Non-VATS	34	58.6	12	100	0.016
Surgical procedures
Mass excision	25	43.1	4	33.3
Mass excision with lung resection	32	55.2	6	50
Mass excision with enbloc resection of other intrathoracic structures	1	1.7	2	16.7	0.122b
Surgical resection
Complete resection	100	100	11	91.7
Incomplete resection	0	0	1	8.3	0.171b

^aThese p values were calculated with the Mann–Whitney U test; ^bthis was calculated using Fisher’s exact test; all others were calculated using Pearson’s chi-square