Table 2.

Recall rate used to estimate number needed to recall in the Japanese guidelines for gastric cancer

Screening	Study	Sex	Age-specific recall rate (%)
			40	45	50	55	60	65	70	75
Radiography	JSGCS [17]	Male	4.8	6.0	7.9	9.8	11.3	11.9	12.2	12.2
		Female	4.1	4.72	5.7	6.5	7.3	7.9	8.5	8.5
Endoscopy	Niigata City [18]	Male	2.9	8.9	11.6	9.7	11.5	11.0	11.2	11.2
		Female	5.8	5.4	6.4	6.7	7.5	7.3	7.3	7.3

Japanese Guidelines for Gastric Cancer 2014 edition. http://canscreen.ncc.go.jp/