Trajectories of Obesity and Overweight Rates Among Survivors of Childhood Acute Lymphoblastic Leukemia.

PURPOSE/OBJECTIVES To describe the trajectories of obesity/overweight rates by age group among survivors of childhood acute lymphoblastic leukemia (ALL) from diagnosis through several years post-therapy. DESIGN Longitudinal, descriptive. SETTING Hematology/oncology clinic in the southwestern United States. SAMPLE 62 child and adolescent ALL survivors receiving treatment and follow-up care from 1999-2013. METHODS Retrospective chart review of height, weight, and body mass index. MAIN RESEARCH VARIABLES Annual obesity/overweight rates and developmental age groups. FINDINGS Different trajectories of obesity/overweight rates existed among age groups. Forty-seven percent of adolescents met the Centers for Disease Control and Prevention criteria for obesity/overweight status at some point following diagnosis, compared to 68% of school-age and 73% of preschool children. Preschool children demonstrated the most rapid rate increase following diagnosis, with a particularly susceptible period in the years immediately following therapy. Obesity/overweight persistence was most characteristic of school-age children. CONCLUSIONS Important variations in rate and pattern of weight status trajectories exist by age group, demonstrating that children diagnosed with ALL during the preschool and school-age developmental years have the greatest vulnerability of developing obesity/overweight status. IMPLICATIONS FOR NURSING Obesity/overweight prevention efforts are greatly needed in children with ALL, and efforts should occur before ALL treatment completion in preschool and school-age children.