Clinical features and prognosis in colorectal cancer patients with different ethnicities in Northwest China

Table 1 Characteristics of colorectal cancer patients of different ethnicities n (%)

Characteristic	Han (n = 1210)	Uyghur (n = 211)	P value
Age (yr)			0.000
< 30	9 (0.7)	21 (10.0)
30-50	230 (19.0)	71 (33.6)
50-70	580 (47.9)	94 (44.5)
≥ 70	391 (32.3)	25 (11.8)
Gender			0.040
Male	694 (57.4)	105 (49.8)
Female	516 (42.6)	106 (50.2)
Occupation			0.000
Cadre (Office worker)	511 (42.2)	61 (28.9)
Physical worker	337 (27.9)	30 (14.2)
Farmer and herder	205 (16.9)	90 (42.7)
Unemployed	157 (13.0)	30 (14.2)
Blood type			0.013
A	378 (31.2)	44 (20.9)
B	386 (31.9)	81 (38.4)
AB	139 (11.5)	32 (15.2)
O	307 (25.4)	54 (25.6)
Tumor location			0.054
Rectum	704 (58.2)	141 (66.8)
Left hemi colon	300 (24.8)	39 (18.5)
Right hemi colon	206 (17.0)	31 (14.7)
Tumor size			0.183
< 4	196 (16.2)	24 (11.4)
4-8	838 (69.3)	157 (74.4)
> 8	176 (14.5)	30 (14.2)
Tumor differentiation			0.360
Poorly	203 (21.1)	42 (24.6)
Moderate	606 (63.0)	108 (63.1)
Well	153 (15.9)	21 (13.3)
Histopathology			0.012
Adenocarcinoma	1031 (85.2)	175 (82.9)
Mucinous cell	146 (12.1)	22 (10.4)
Signet-ring cell	33 (2.7)	14 (6.6)
Gross type			0.395
Invasive	153 (12.6)	20 (9.5)
Ulcerous	576 (47.6)	101 (47.9)
Fungus	481 (39.8)	90 (42.7)
T			0.673
1	34 (2.8)	4 (1.9)
2	249 (20.6)	40 (19.0)
3	520 (43.0)	99 (46.9)
4	407 (33.6)	68 (32.2)
N			0.071
No	494 (40.8)	77 (36.5)
≤ 4	538 (44.5)	111 (52.6)
> 4	178 (14.7)	23 (10.9)
M			0.692
No	1039 (85.9)	179 (84.8)
Yes	171 (14.1)	32 (15.2)
Staging			0.669
I	129 (10.7)	20 (9.5)
II	362 (29.9)	56 (26.5)
III	548 (45.3)	103 (48.8)
IV	171 (14.1)	32 (15.2)
CEA			0.992
≤ 3.4	301 (27.8)	52 (27.8)
> 3.4	780 (72.2)	135 (72.2)

T: Tumor infiltration depth; N: Number of lymph node; M: Metastasis at diagnosis; CEA: Carcinoembryonic antigen.