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

Table 2 Annual incidence of adenocarcinoma and dysplasia dependent on age at surveillance

Age at surveillance	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
< 40	236	0	0.00%	1	0.42%	4	1.89%
40-49	740	0	0.00%	2	0.27%	15	2.30%
50-59	1602	6	0.37%	9	0.56%	39	2.82%
60-69	2154	15	0.70%	20	0.94%	63	3.66%
70-79	1464	20	1.37%	26	1.81%	52	4.49%
80+	278	13	4.67%	12	4.34%	17	7.18%
Total	6474	54	0.83%	70	1.09%	190	3.54%