Table 1.
Demographic and diagnostic characteristics of acute lymphocytic leukemia cases used for Parvovirus B19/DNA methylation analysis
| n | % | |
| Sex | ||
| Female | 43 | 41 |
| Male | 61 | 59 |
| Age (years) | ||
| <1 | 16 | 15 |
| 1–9 | 70 | 67 |
| ≥10 | 18 | 18 |
| WBC (x109/L) | ||
| <50 | 60 | 58 |
| ≥50 | 44 | 42 |
| Immunophenotype | ||
| pro-B ALL | 17 | 16 |
| c-ALL | 76 | 73 |
| pre-B ALL | 11 | 15 |
| Cytogenetic/Molecular abnormalities | ||
| TEL-AML1 | 22 | 21 |
| E2A-PBX1 | 4 | 3.8 |
| MLL rearranged | 14 | 13.5 |
| Hyperdiploidy | 24 | 23 |
| Other | 3 | 3 |
| None | 28 | 27 |
| Unknown | 9 | 8.7 |
| Seroprevalence PVB19 | ||
| IgM positive | 2 | 2 |
| IgM undetermined | 1 | 1 |
| IgG positive | 28 | 27 |
| IgG undetermined | 11 | 10.5 |
| Double IgM + IgG+ | 1 | 1 |
| IgM pos + IgG und | 1 | 1 |