Table 1.

Sensitivity to Detect Gastric Cancer by Endoscopy in the National Cancer Screening Program of Korea and Japan

Country	Time period	Population	<3 Years miss rate, n (%)	Positive predictive value, % (95% CI)	Sensitivity, % (95% CI)	Specificity, % (95% CI)	Study design
Korea [6]	2002–2005	765,813	1,093/3,498 (40)	6.2 (6.0–6.4)	69.0 (66.3–71.8)	96.0 (95.8–96.2)	Screening
Japan [7,8]	1990–1995	51,411	188/730 (25.8)		88.6 (69.8–97.6)a)		Retrospective

CI, confidence interval.

^a)It was calculated be incidence method in prevalence screening.