Risk stratification for malignant progression in Barrett’s esophagus: Gender, age, duration and year of surveillance

Table 3 Annual incidence of adenocarcinoma and dysplasia dependent on duration of surveillance

Duration of surveillance (yr)	Total patient-years follow-up	Adenocarcinoma		High-grade dysplasia and adenocarcinoma		All grades of dysplasia and adenocarcinoma
		Number of cases	Annual incidence	Number of cases	Annual incidence	Number of cases	Annual incidence
1-2	1848	14	0.76%	19	1.04%	72	4.47%
3-4	1235	9	0.73%	11	0.90%	41	4.02%
5-9	1587	20	1.26%	27	1.72%	54	4.47%
10+	668	11	1.65%	13	1.96%	23	4.52%