Table 2. Scoring system for disease activity index1)
| Score | Weight loss (%) | Stool consistency2) | Gross bleeding |
| 0 | None | Normal | Negative |
| 1 | 1–5 | Loose | Negative |
| 2 | 5–10 | Loose | Hemoccult positive |
| 3 | 11–15 | Diarrhoea | Hemoccult positive |
| 4 | >15 | Diarrhoea | Bleeding |
Disease activity index, DAI=(Score of weight loss+Stool consistency+Gross bleeding)/3
Normal stool, well-formed pellets; loose, pasty stool that does not stick to the anus; diarrhoea, liquid stool that sticks to anus.