. 2017 Aug 16;21(12):2000–2008. doi: 10.1007/s11605-017-3531-x

Table 1.

Patient and tumor characteristics according to centralization status: pre-centralization 2008–2011 and post-centralization 2013–2016

		Pre-centralization (N = 144)	Percent	Post-centralization (N = 106)	Percent	Significance
Follow-up (months)		Median 43 IQR 48 (15–63)		Median 15 IQR 17 (7–24)		< 0.01*
Age in years	< 70	65	45	47	44	0.90^a
	≥ 70	79	55	59	56
Gender	Male	90	63	60	57	0.35^a
	Female	54	38	46	43
BMI		Mean 25.1 (SD 4.0)		Mean 25.4 (SD 4.0)		0.27*
ASA-classification	I	17	12	7	6.6	<0.02^a
	II	81	56	74	70
	III	35	24	21	20
	IV	2	1.4	4	3.8
	Unknown	9	6.3	0	0
Comorbidity	0	44	31	31	29	0.79^a
	1	63	44	45	43
	≥ 2	36	25	30	28
	Unknown	1	0.7	0	0
Previous abdominal surgery	Yes	54	38	33	31	0.38^a
	No	89	62	73	69
	Unknown	1	0.7	0	0
	Yes	12	8.3	6	5.7	0.49^a
	No	131	91	100	94
	Unknown	1	0.7	0	0
Previous malignancy	Yes	20	14	20	19	0.40^a
	No	123	85	86	81
	Unknown	1	0.7	0	0
pT-stage	0/×	10	6.9	9	9	0.36^a
	1	29	20	23	22
	2A	17	12	20	19
	2B	55	38	38	36
	3	27	19	15	14
	4	6	4.2	1	0.9
pN-stage	Nx	9	6.3	2	1.9	0.11^a
	0	78	54	51	48
	1	43	30	34	32
	2	13	9	15	14
	3	1	0.7	4	3.8
Tumor topography	Proximal/middle	43	30	33	31	0.30^a
	Pyloric/antrum	62	43	53	50
	Overlapping/not specified	39	27	20	19
Tumor grade	Well differentiated	8	5.6	4	3.8	0.12^a
	Moderately differentiated	16	11	22	21
	Poorly/undifferentiated	68	47	39	37
	Unknown	52	36	41	39
Type (Lauren classification)	Intestinal type	92	64	52	49	0.05^a
	Diffuse type	45	31	49	46
	Indeterminate type	7	4.9	5	4.7

*Mann-Whitney test

^aPearson chi square