Autofluorescence imaging endoscopy for identification and assessment of inflammatory ulcerative colitis

Table 1 Endoscopic scoring system scored from 0 to 3 (Mayo endoscopic subscore)

Score
0	Normal or inactive disease
1	Mild disease (erythema, decreased vascular pattern, mild friability)
2	Moderate disease (marked erythema, absent vascular pattern, friability, erosions)
3	Severe disease (spontaneous bleeding, ulceration)

Table 2 Seven endoscopic features scored from 0 to 10 points

Vascular pattern	0 (normal) to 10 (absent)
Erythema	0 (absent) to 10 (marked)
Edema	0 (absent) to 10 (marked)
Granularity	0 (absent) to 10 (marked)
Erosions	0 (absent) to 10 (multiple)
Ulcerations	0 (absent) to 10 (multiple)
Friability	0 (absent) to 10 (marked)

Table 3 Histological scoring system (Riley index)

1	Round cells in the lamina propria
2	Polymorphonuclear cells in the lamina propria
3	Crypt abscesses
4	Mucin depletion
5	Surface epithelial integrity
6	Crypt architectural irregularities

Each item is scored from 0 (absent) to 3 points (severe).