A univariate analysis was conducted to assess age at the time of leukemia diagnosis; the BMD SDS at the time of leukemia diagnosis; transplantation; TBI; the BMI SDS at the time of the DXA examination; and calcium, 25-hydroxyvitamin D, IGF-1 SDS, and IGFBP-3 SDS levels at the time of the DXA examination. This evidence concerns the gene IGFBP3 and leukemia.