Table 1.

Descriptive statistics of the two cohorts

	Overall (n = 1261)		Caucasian (n = 851)		Asian (n = 410)		p value
	n	%	n	%	n	%
Gender (male)	852	68	557	66	295	72	0.026*
Mean age (years)	66.6 (SD 11.0)		68.2 (SD 10.8)		63.3 (SD 10.7)		< 0.001*
T stage							< 0.001*
T1	131	11	96	12	35	9
T2	146	12	84	11	62	15
T3	307	26	252	33	55	13
T4	600	51	343	44	257	63
N stage							< 0.001*
N0	359	29	275	32	84	21
N1	264	21	177	21	87	22
N2	296	24	194	23	102	25
N3	340	27	204	24	136	33
Classification							0.641
PC < 10% SRCs	192	15	129	15	63	15
PC > 10% SRCs	67	5	46	5	21	5
Non-PC < 10% SRCs	905	72	608	71	297	72
Non-PC > 10% SRCs	38	3	23	3	15	4
MC < 10% SRCs	14	1	9	1	5	1
MC > 10% SRCs	27	2	22	3	5	1
Non-informative	18	1	14	2	4	1
Mucins
MUC2							0.043*
Negative	1050	83	698	82	352	86
Positive	173	14	129	15	44	11
MUC5AC							< 0.001*
Negative	844	67	544	64	300	73
Positive	387	31	289	34	98	24
ABPAS							0.037*
Negative	974	77	674	79	300	73
Positive	255	20	159	19	96	23
*AB positive	62	5	47	6	15	4
*PAS positive	37	3	23	3	14	3
*Mixed, same cells	7	0.6	2	0.2	5	1
*Mixed, different cells	4	0.3	4	0.5	0	0
*Mixed, both expressions	145	12	83	10	62	15

n number of cases, SRC signet-ring cell, PC poorly cohesive cancer, non-PC non-poorly cohesive cancer, MC mucinous cancer, SD standard deviation