Table 2.

The results of surgery in both groups

Variable	Three-port group (n=19)	Single-port group (n=33)	p-value
Mean no. of wedge resection	1.58±0.61	1.64±0.78	0.784
Mean operation time (min)	41.58±9.14	41.21±9.10	0.889
Mean amounts of chest tube drainage for first 24 hours after surgery (mL)	147.89±63.30	119.09±9.10	0.137
Mean length of drainage (day)	3.79±1.44	2.82±0.92	0.004
Mean hospital stay (day)	4.47±1.35	3.64±1.03	0.015
Mean visual analog scale score
At 24 hours later	5.00±1.83	4.06±1.20	0.029
At discharge	3.21±1.48	1.76±0.94	0.001
Variances	−2.05±1.31	−2.30±1.47	0.541
Postoperative paresthesias	9	3	0.004
Mean wound size (cm)	-	2.10±0.28

Values are presented as mean±standard deviation or number.