Supplementary Table 2.

Partial Mayo score

Parameter	Clinical evaluation	Score
1. Stool frequency (per day)	Normal number of stools	0
	1-2 more than normal	1
	3-4 more than normal	2
	≥5 more than normal	3
2. Rectal bleeding (indicate the most severe bleeding of the day)	None	0
	Streaks of blood with stool in less than half of the cases	1
	Obvious blood with stools in most cases	2
	Blood alone passes	3
3. Physician’s global assessment	Normal	0
	Mild disease	1
	Moderate disease	2
	Severe disease	3