Table 1.

Basic characteristics of the clinical variables in GC patients.

Clinical variables	Total	Training dataset	Validate dataset
Sample size	300	210	90
Survival status
Dead	152	102	50
Survived	148	108	40
Median age (year)	61.94	47.59	62.76
Sex
Female	101	74	27
Male	199	136	63
T stage
2	188	130	58
3	91	67	24
4	21	13	8
N stage
0	38	28	10
1	131	94	37
2	80	49	31
3	51	39	12
M stage
0	273	191	82
1	27	19	8
AJCC stage
I	30	21	9
II	97	70	27
III	96	65	31
IV	77	54	23
Recurrent status
Yes	125	110	53
No	157	77	29
Unknown	18	19	8
Tumor cite		4
Antrum	155	110	45
Body	107	77	30
Cardia	32	19	13
Whole	6	4	2
WHO classification
W/D and M/D tubular	114	89	25
P/D tubular	116	73	43
Signet ring cell	37	25	12
Mucinous	8	5	3
Papillary	9	6	3
Other	16	12	4
Lauren type
Intestinal	150	110	40
Diffuse	142	95	47
Mixed	8	5	3
Molecular subtype
MSS/TP53−	107	79	28
MSS/TP53+	79	53	26
MSI	68	44	24
MSS/EMT	46	34	12
EBV status
Positive	18	181	76
Negative	257	13	5
Missing	12	16	9
Adjuvant CCRT
Completed	73	46	27
Not completed	7	5	2
Not done	220	129	61
OP type
TG	135	94	41
STG	165	116	49

GC – gastric cancer; AJCC – American Joint Committee on Cancer; WHO – World Health Organization; W/D – well-differentiated; M/D – moderately differentiated; P/D – poorly differentiated; MSS – microsatellite stable; TP53− – tumor protein 53 inactive; TP53+ – tumor protein 53 active; MSI – microsatellite instability; EMT – epithelial-mesenchymal transition; TG – total gastrectomy; STG – subtotal gastrectomy.