Table 1.

Patient characteristics in the training and external validation cohorts.

	Training cohort (N=192)			External validation cohort (N=152)
	Low-Ki67	High-Ki67	P	Low-Ki67	High-Ki67	P
	(N=128)	(N=64)		(N=107)	(N=45)
Age (years)	61.8 ± 11.23	63.02 ± 12.82	0.536	55.86 ± 10.74	60.78± 13.29	0.237
Sex (n)			0.609			0.305
Female	61	28		59	27
Male	67	36		48	18
Site (n)			0.459			0.286
Gastric	83	26		31	15
Intestinal	45	38		76	30

P < 0.05 indicates that difference is statistically significant.