Table 4.

Hospitalization and surgical characteristics.

Variable	COT	GETTSA	Z/t	P
Operative time	80.00 (65.00–93.75)	110.00 (90.00–130.00)	-10.364	< 0.001
Postoperative length of stay	1.00 (1.00–3.00)	1.00 (1.00–2.00)	-1.339	0.181
Hospital fees	21155.45 ± 2887.73	23340.14 ± 1900.95	-8.092	< 0.001
Lymph node dissection	8.00 (6.00–11.75)	4.00 (2.00–7.75)	-7.003	< 0.001
Lymph node metastases	0.00 (0.00–1.00)	0.00 (0.00–1.00)	-1.422	0.155
1st flow diversion	45.00 (35.00–50.00)	49.00 (40.00–60.00)	-2.388	0.017