Table 1:CTC classification for haematotoxicity, mucositis, diarrhea and nausea.
| Stage 0 | Stage 1 mild | Stage 2 moderate | Stage 3 severe | Stage 4 life threatening | Stage 5 Death | |
| Leucocytes | > 4.000/μl | 1.500 - < 2.000/μl | 1.000 - < 1.500/μl | 500 - < 1.000/μl | < 500/μl | - |
| Thrombocytes | 2100.000/μl | 75.000 - 99.999/μl | 50.000 - 74.999/μl | 25.000 - 49.999yμl | < 25.000/μl | - |
| Hemoglobin | > 11 g/μl | 10 -11 g/dl | 8 - < 10 g/μl | 6.5 - < 8 g/μl | < 6.5 g/dl | - |
| Nausea | No nausea | Marginal, food intake normal | Moderate, food intake reduced | Heavily, no food intake | - | - |
| Vomiting | No vomiting | 1 ×/d | (2 - 5) ×/d | (6 - 10) ×/d | > 10 ×/d | - |
| Diarrhea | No diarrhea | (2 - 3) ×/d | (3 - 6) ×/d or moderate abdominal cramping | (7 - 9) ×/d or severe abdominal cramping | > 9 ×/d or bloody diarrhea | - |
| Stomatitis/mucositis | No stomatitis | Erythema, painless erosions | Ulcera, solid food possible | Ulcera, liquid diet | No food intake possible | - |