Table 4.

Suggested surveillance interval according to risk factor categorization in patients with gastric adenoma after endoscopic submucosal dissection with curative resection.

Group	Risk factors	Follow-up schedules after ESD																				Total visita	Riskb (%)
		3	6	9	12	15	18	21	24	27	30	33	36	39	42	45	48	51	54	57	60
A1	Male	√			√		√		√			√			√				√			7	6.82
	Protruded scar
	Age ≥ 59 years
A2	Female	√					√					√							√			4	6.97
	Protruded scar
	Age ≥ 59 years
A3	Male	√						√							√						√	4	6.27
	Flat scar
	Age ≥ 59 years
A4	Male	√							√									√				3	6.96
	Protruded scar
	Age < 59 years
A5	Female	√															√					2	6.95
	Flat scar
	Age ≥ 59 years
A6	Female	√																	√			2	6.77
	Protruded scar
	Age < 59 years
A7	Male	√																			√	2	6.04
	Flat scar
	Age < 59 years
A8	Female	√																				1	–
	Flat scar
	Age < 59 years

ESD, endoscopic submucosal dissection.

^aPredicted visit number by groups up to 60 months.

^bMean recurrence rate between visits.