Table 1.

Characteristics of patients and tumours.

	General characteristics			CD9	CD63	GLUT-1
Age at diagnosis (years)	Mean (SD)	62.6 (13.6)		n/a
	Median (min–max)	64.5 (31–89)
		n	%
Age at diagnosis (years)	30–39	2	3.7	n/a
	40–49	9	16.7
	50–59	13	24.1
	60–69	11	20.4
	70–79	13	24.1
	80–89	6	11.1
Gender	Female	28	51.9	n/a
	Male	26	48.1
Tumour location	Stomach	40	74.1	n/a
	Small intestine	10	18.5
	Colon	2	3.7
	Duodenum	1	1.9
	Rectum	1	1.9
Tumour size (cm)	Median (min–max)	5	(0.8–23)	n/a
Tumour size (cm)	≤2.5	11	20.4	n/a
	2.51–5.0	20	37.0
	5.01–7.5	12	22.2
	7.51–10	3	5.6
	>10	8	14.8
ESMO group	1	6	11.1	ESMO 1-2 in comparison with 3a and above p = 0.25	ESMO 1-2 in comparison with 3a and above p = 0.003  /chi-square test/	ESMO 1-2 in comparison with 3a and above p = 0.014  /chi-square test/
	2	21	38.9
	3a	10	18.5
	3b	4	7.4
	4	2	3.7
	5	2	3.7
	6a	6	11.1
	6b	3	5.6
CD9 expression	0	1	1.9	—	p > 0.05	p > 0.05
	2	7	13.0
	3	46	85.2
CD63 expression	0	21	38.9	p > 0.05	—	Comparison of CD63 0-1 with GLUT-1 0-1 and 2-3 expression p = 0.003  /chi-square test/
	1	17	31.5
	2	9	16.7
	3	7	13.0
GLUT-1 expression	0	6	11.1	p > 0.05	Comparison of CD63 0-1 with GLUT-1 0-1 and 2-3 expression p = 0.003  /chi-square test/	—
	1	23	42.6
	2	16	29.6
	3	9	16.7
Follow-up (years)	Median (min–max)	3	(1–13)	n/a

n/a: not applicable.