Table 1.
Numbers of cases and controls overall (aged 2-14 years) and aged 2-5 at diagnosis or pseudodiagnosis
| Group or subgroup | Age 2-14 | Age 2-5 |
|---|---|---|
| Controls | 6305 | 2497 |
| Acute lymphoblastic leukaemia (ALL): | 1286 | 677 |
| cALL | 798 | 475 |
| TEL-AML1 | 139 | 82 |
| Hyperdiploid ALL | 420 | 248 |
| Non-ALL malignancles: | 1854 | 554 |
| Central nervous system tumours | 578 | 157 |
| Hodgkin's disease | 117 | 9 |
| Other leukaemia* | 192 | 50 |
| Non-Hodgkin's lymphoma | 227 | 49 |
| Others† | 740 | 289 |
| All cases | 3140 | 1231 |
cALL=B cell precursor common ALL; TEL-AML1=ALL with fusion of the TEL and AML1 genes.
*
Leukaemias other than ALL.
†
Malignancies other than leukaemias, lymphomas, and central nervous system tumours.