Characteristics of the 159 patients treated with azathioprine (AZA)
| *Values are median (range). | |
| Sex (M:F) | 88:71 |
| Disease classification and location | |
| Crohn’s disease (n) | 105 |
| Ulcerative colitis (n) | 46 |
| Indeterminate colitis (n) | 8 |
| AZA dose (mg/day)* | 125 (25–250) |
| AZA dose (mg/kg/day)* | 1.8 (0.4–2.8) |
| Indication for AZA use | |
| Steroid dependent | 108 |
| Steroid refractory | 33 |
| Remission maintenance | |
| Flare after steroid withdrawal | 9 |
| Post surgical prophylaxis | 4 |
| Other | 1 |
| No information | 4 |
| Age at diagnosis (y)* | 30 (5–71) |
| Age at AZA commencement (y)* | 38 (12–81) |
| Interval from diagnosis to start AZA (y)* | 5 (0–50) |