Value of screening endoscopy in evaluation of esophageal, gastric and colon cancers

Table 4 Endoscopy used in cancer screening

Ref.	Number of Subjects	Sensitivity	Specificity	PPV
Hamashima et al[44], 2013	EGD: 7388	88.60%	85.10%	5.50%
		(69.8-97.6)1	(84.3-85.9)1	(4.3-7.0)1
	Upper GI series: 5410	83.10%	85.60%	4.30%
		(58.6-96.4)1	(84.6-86.5)1	(3.4-5.2)1
Choi et al[43,45], 2011	EGD: 924822	66.90%	96.20%	5.30%
		(59.8-74.0)1	(95.7-96.7)1	(4.8-5.9)1
	Upper GI series: 1765909	27.30%	96.60%	1.30%
		(22.6-32.0)1	(96.3-97.0)1	(1.1-1.6)1

¹The 95% confidential intervals are given in parentheses[35]. Adapted from Choi et al[43].