Apheresis: A cell-based therapeutic tool for the inflammatory bowel disease

Table 3 Mayo score for ulcerative colitis

Score	Stool frequency (stools/day more than normal)	Rectal bleeding	Mucosal appearance at endoscopy	Physician’s assessment
0	Normal	No blood seen	Normal/inactive disease	Normal
1	1-2	Visible blood in stool < 50% of time	Mild disease	Mild
2	3-4	Visible blood with stool in > 50%	Moderate disease	Moderate
3	> 4	Passing blood	Severe disease	Severe

Total scores range from 0 to 12, with higher scores indicating increased severity of the disease[39].