Table 1.

Baseline clinical characteristics of Japanese and US patient cohort

	Japanese (N = 160)		US (N = 104)		P valuea
	n	%	n	%
Gender
Male	102	64	64	62
Female	58	36	40	38	0.79
Age (years)
Median (range)	68 (31–88)		57 (26–85)
<65	60	38	84	81
65–74	56	35	12	12	<0.001
≥75	44	27	8	8
Stage
I–II	76	48	38	37
III–IV	84	52	66	63	0.098
Tumor stage
T1	12	8	2	2
T2	61	38	36	34
T3	84	52	56	54	0.003
T4	3	2	10	10
N stage
N0	36	23	24	23
N1	79	49	49	47	0.89
N2	31	19	19	18
N3	14	9	12	12
Tumor site
Stomach	158	99	62	60	<0.001
GEJ	2	1	31	30
Unknown			11	11
Histological classification (Japanese/Lauren)
Differentiated/intestinal	64	40	37	36
Undifferentiated/diffuse	96	60	30	29
Mixed			18	17	<0.001
Unknown			19	18
Adjuvant chemotherapy
Yes	103	64	79	76
No	57	36	25	24	0.057
Ethnicity
Asian	160	100	24	23
Caucasian	0		36	35	N/A
Hispanic	0		43	41
African American	0		1	1

^aBased on χ² test or Fisher's exact test.

GEJ, gastroesophageal junction.