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. 2014 Aug 29;4:6234. doi: 10.1038/srep06234

Table 4. Scoring system to calculate the disease activity index (DAI).

Score Weight loss Stool Consistency Blood in feces
0 None Normal None
1 1–5%    
2 6–10% Loose Stool Occult bleeding
3 11–20%    
4 >20% Diarrhea Gross bleeding

The DAI value is calculated as the scores of weight loss, stool consistency, and blood feces divided by 3.Weight loss is always calculated to day 1 of each group.