Table 2.

Outcomes according to compliance to screening systems n (%)

	Regular follow-up	Irregular follow-up	P value
No. of subjects	9635 (21.1)	36  019 (78.9)
Age (yr), mean ± SD	54.4 ± 9.3	55.7 ± 9.1	< 0.001
40-49	2783 (28.9)	12  099 (33.6)
50-59	3413 (35.4)	12  701 (35.2)
60-69	2789 (28.9)	9021 (25.1)
70+	650 (6.8)	2198 (6.1)
Sex			< 0.001
Male	4170 (43.3)	14  485 (40.2)
Female	5465 (56.7)	21  534 (59.8)
Gastric cancer	17 (0.2)	109 (0.3)	0.036
Endoscopic feature			0.942
EGC	12 (70.6)	76 (69.7)
AGC	5 (29.4)	33 (30.3)

EGC: Early gastric cancer; AGC: Advanced gastric cancer.