Table 1.

Benchmark findings versus OGD1 and OGD2 reports

Pathology	Benchmark	OGD1	OGD2
Barrett's oesophagus	6	4	6
Peptic ulcer	1	0	1
Oesophagitis	5	5	5
Erosive gastritis	4	4	4
Large HH	4	4	4
Submucosal lesion	1	1	1
Superficial erythema	13	26	20
Schatzki ring	1	0	0
Small HH	12	13	14
Fundic polyps	5	4	4

HH, hiatus hernia; OGD, oesophago-gastro-duodenoscopy.