Optimal interval of endoscopic screening based on stage distributions of detected gastric cancers

BMC Cancer

Table 1 Characteristics of gastric cancer patients and their gastric cancers detected by endoscopic and radiographic screenings

Screening method	Endoscopic screening		Radiographic screening		p-value
Screening method	Number	(%)	Number	(%)	p-value
Total number	1585		462
Sex
Men	1097	69.2	322	69.7	0.842
Women	488	30.8	140	30.3
Age group
40–49 years	3	0.2	1	0.2
50–59 years	69	4.4	20	4.3	0.647
60–69 years	614	38.7	164	35.5
70–79 years	899	56.7	277	60.0
Screening history^a
No screening history	688	43.4	169	36.6
Screening 1 year before	715	45.1	231	50.0	0.072
Screening 2 years before	127	8.0	44	9.5
Screening 3 years before	55	3.5	18	3.9
Stage
Stage I	944	59.6	284	61.5
Stage II	66	4.2	45	9.7
Stage III	48	3.0	32	6.9	< 0.001
Stage IV	50	3.2	31	6.7
Unknown	427	26.9	70	15.2
Pathology
Intestine	1436	90.6	414	89.6
Diffuse	115	7.3	34	7.4	0.719
Others	13	0.8	6	1.3
Unknown	21	1.3	8	1.7
Treatment
Endoscopic submucosal dissection	793	50.0	127	27.5
Surgery	703	44.4	293	63.4	< 0.001
Others	61	3.8	28	6.1
Unknown	28	1.8	14	3.0

^aScreening history was limited to the same method of which gastric cancer was diagnosed

ISSN: 1471-2407