Table 2.

Surgery and hospital stay according to centralization status: pre-centralization 2008–2011 and post-centralization 2013–2016

		Pre-centralization N = 144		Post-centralization N = 106
			Percent		Percent	Significance
Time between diagnosis and treatment (days)		Median 35.50 IQR 23 (27–50)		Median 34.00 IQR 17 (28–45)		0.94*
Type of chemotherapy	None	68	47	47	44	0.65a
	Only neoadjuvant	37	26	14	13	0.02a
	Only adjuvant	3	2.1	1	0.9	0.44a
	Peri-operative	36	25	44	42	<0.01a
Type of resection	Partial gastrectomy	98	68	78	74	0.34a
	Total gastrectomy	46	32	28	26
Resection method	Laparotomy	133	92	62	59	<0.01a
	Laparoscopic	8	5.6	42	40
	Unknown	3	2.1	2	1.9
Duration surgery (minutes)		Median 147 IQR 69 (116–185)		Median 180 IQR 74 (154–228)		<0.01*
Blood loss (ml)		Median 300 IQR 488 (200–688)		Median 200 IQR 313 (100–413)		<0.01*
Lymphnodes harvested	< 15	114	79	8	8	<0.01a
	≥ 15	30	21	98	93
Tumor residue	R0	115	79	92	87	0.16a
	R1	22	15	13	12
	Unknown	7	4.9	1	0.9
Hospital stay (days)		Median 10 IQR 7 (7–14)		Median 8 IQR 4 (7–11)		<0.01*

*Mann-Whitney test

^aPearson chi square