Table 6

UCEIS descriptors and definitions

Descriptor (score most severe lesions)Likert scale anchor pointsDefinition
Vascular patternNormal (1)Normal vascular pattern with arborisation of capillaries clearly defined, or with blurring or patchy loss of capillary margins
Patchy obliteration (2)Patchy obliteration of vascular pattern
Obliterated (3)Complete obliteration of vascular pattern
BleedingNone (1)No visible blood
Mucosal (2)Some spots or streaks of coagulated blood on the surface of the mucosa ahead of the scope, which can be washed away
Luminal mild (3)Some free liquid blood in the lumen
Luminal moderate or severe (4)Frank blood in the lumen ahead of endoscope or visible oozing from mucosa after washing intraluminal blood, or visible oozing from a haemorrhagic mucosa
Erosions and ulcersNone (1)Normal mucosa, no visible erosions or ulcers
Erosions (2)Tiny (≤ 5mm) defects in the mucosa, of a white or yellow colour with a flat edge
Superficial ulcer (3)Larger (>5 mm) defects in the mucosa, which are discrete fibrin-covered ulcers in comparison with erosions, but remain superficial
Deep ulcer (4)Deeper excavated defects in the mucosa, with a slightly raised edge
  • Additional files indicating the levels of the UCEIS are available online only.