Pediatric Hodgkin Lymphoma Survivors at Negligible Risk for Significant Bone Mineral Density Deficits

Background. We hypothesized that pediatric Hodgkin lymphoma (HL) survivors would have bone mineral density (BMD) deficits compared to their peers because of osteotoxic chemotherapy during the time of greatest BMD accretion. Methods. We retrospectively reviewed records or HL Survivors returning for follow-up between 1990 and 2002. Of the 133 eligible survivors, 109 who underwent quantitative computed tomography (QCT) comprised the study group. QCT-determined BMD Z-scores were correlated with patient characteristics and therapeutic exposures by Wilcoxon rank sun) or Chi-square tests. Logistic regression models were used to explore risk factors for diminished BMD. Results. The study cohort was half male (50.5%) and 85.3% reported their race as white. Participants were representative of all Survivors potentially eligible for study, except that more study participants were female, had hypothyroidism, and had received cyclophosphamide. Median age at diagnosis was 15.1 years (range, 3.1-20.7 years); median time between diagnosis and QCT was 7.5 years (range, 5.0-12.4 years). The proportion of HL survivors with BMD below the mean did not significantly differ horn the general population (P = 0.503). However, those with BMD -1.5 SD and BMD-2.0 SD or lower (14.7% and 7.3%, respectively) exceeded that in the general population (6.7% and 2.3%, respectively; P<0.001 for both degrees of severity). Males, diagnosed ail 14 years or older, were at 0.5 times higher risk than females (OR 95% CI: 1.24-34.14; P=0.027) for BMD deficits. Conclusions. Overall, pediatric HL Survivors had negligible BMD deficits. Male gender was associated with In increased risk of developing BMD deficits. Pediatr Blood Cancer 2009;52:5 16-521. (c) 2008 Wiley-Liss, Inc.