Table 2.

Clinical variables

Group	Surgical duration (min)	Blood loss (mL)	Conversion to thoracotomy	Drainage duration (day)	Drainage amount (mL)	Hospital stay (days)	Complications	Hospitalcost (thousands¥)
3D (n = 76)	112.5 ± 45.9	125.3 ± 132.4	1	4.7 ± 1.5	913.6 ± 482.5	8.4 ± 1.9	11	58.9 ± 4.9
2D (n = 89)	125.7 ± 54.2	121.4 ± 148.0	1	4.9 ± 1.6	860.8 ± 477.3	8.1 ± 2.3	14	59.9 ± 5.5
T value (χ 2 value)	−1.674	0.178	0.013	−0.902	0.705	1.010	0.050	−1.266
P value	0.096	0.859	1.000	0.369	0.482	0.314	0.822	0.207

2D, two‐dimensional; 3D, three‐dimensional.