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Characteristics of study subjects
| Diagnosis | Acute lymphocytic leukemia (total n = 28) | ||
| Age group | Ages 0–14 (n = 21) | Ages 15–19 (n = 4) | Ages 20–23 (n = 3) |
| Gender | Male: 13 (62 %) | Male: 4 (100 %) | Male: 2 (67 %) |
| Female: 8 (38 %) | Female: 0 (0 %) | Female: 1 (33 %) | |
| Sibling | Healthy control (total n = 23) | Ages 2–25 years (median age 9.3 years) | |
| Gender | Male: 7 (30 %), Female: 16 (70 %) | ||
Three participants in the 20–23 years age group did not complete the study. Two withdrew, and one was deceased
