Table 2.

Outline and Calculation of CDACE

Location inflammatory score	Inflammatory score of each location (Li1, Li2, Li3, Li4)
0	Normal mucosa
1	Edematous/reddish
2	Erosion (<0.5 cm)
3	Irregular/circular ulcer (0.5–2 cm)
4	Longitudinal/large ulcer/cobblestone appearance
Range score	R score
0	No inflammation
1	Inflammation within 1/4 quartile
2	Inflammation within 2/4 quartiles
3	Inflammation within 3/4 quartiles
4	Inflammation within 4/4 quartiles
Stenosis score	S score
0	No stenosis
1	Single passage
2	Multiple passages
3	No passage

CDACE score = (Li1 + Li2 + Li3 + Li4) × 100 + R score × 10 + S score; score range: 0–1643.