Comparative prevalence of molecular and cytogenetic abnormalities by age group
| . | Younger than 3 y . | 3 y or older . | P . | ||
|---|---|---|---|---|---|
| N . | % . | N . | % . | ||
| Total | 71 | 100 | 224 | 100 | — |
| Molecular | |||||
| NPMc+ | 0 | 0 | 23 | 10 | .002* |
| FLT3/ITD | 4 | 6 | 49 | 22 | .001* |
| Cytogenetic | |||||
| Normal | 15 | 21 | 72 | 32 | .1 |
| 11q23 | 22 | 31 | 24 | 11 | .001* |
| inv(16) | 3 | 4 | 21 | 9 | .216 |
| t(8;21) | 0 | 0 | 26 | 12 | .001* |
| Miscellaneous | 21 | 30 | 48 | 21 | .198 |
| . | Younger than 3 y . | 3 y or older . | P . | ||
|---|---|---|---|---|---|
| N . | % . | N . | % . | ||
| Total | 71 | 100 | 224 | 100 | — |
| Molecular | |||||
| NPMc+ | 0 | 0 | 23 | 10 | .002* |
| FLT3/ITD | 4 | 6 | 49 | 22 | .001* |
| Cytogenetic | |||||
| Normal | 15 | 21 | 72 | 32 | .1 |
| 11q23 | 22 | 31 | 24 | 11 | .001* |
| inv(16) | 3 | 4 | 21 | 9 | .216 |
| t(8;21) | 0 | 0 | 26 | 12 | .001* |
| Miscellaneous | 21 | 30 | 48 | 21 | .198 |
Significant P values.