To further explore the finding of increased 11p15.5 H19/ICR1 methylation found in peripheral blood of BWT patients and to determine if this was different from healthy community controls and unilateral WT patients, we combined identically processed and normalized H19/ICR1 methylation β values from leukocyte-derived DNA between our current BWT cohort (n = 61) and a cohort of healthy community controls (n = 282) and WT cancer long-term survivors (including survivors of both unilateral [n = 154] and BWT [n = 17]) from the St. This evidence concerns the gene H19 and cancer.