Table 2. Differences in the time of surgery, post-operative hospitalization, costs of the procedure and total hospital cost.

Studied feature	VATS	Thoracotomy	Level of statistical significance (P)
Average time of the procedure (min)	145	143	0.96
Average time of stay after the procedure (day)	3.69	5.71	0.0000084
Average cost of the procedure	7,332 PLN (1,705 euros)	2,993 PLN (682 euros)	0.0114
Average cost of hospitalization	9,609 PLN (2,235 euros)	6,450 PLN (1,500 euros)	0.05118