Patient demographics
| *Non-oriental children of Indian and Sri Lankan origin. There were no children from Pakistan or Bangladesh. | |
| Total number of patients | 44 |
| Sex (male: female) | 20:24 |
| Age (median (range) years) | |
| at onset | 4.1 (1–14) |
| at presentation | 5.4 (1–14) |
| at discharge | 9.5 (6–15) |
| Ethnic origin (n) | |
| White | 20 |
| Asian* | 22 |
| Middle Eastern | 2 |
| African-Caribbean | 0 |
| Follow up (median (range) (years)) | 7 (0.58–12) |