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Løhmann, Ditte J. A.; Asdahl, Peter H.; Abrahamsson, Jonas; Ha, Shau‐Yin; Jónsson, Ólafur G.; Kaspers, Gertjan J. L.; Koskenvuo, Minna; Lausen, Birgitte; De Moerloose, Barbara; Palle, Josefine; Zeller, Bernward; Sung, Lillian; Hasle, Henrik
Cancer medicine (Malden, MA), November 2019, Letnik: 8, Številka: 15Journal Article
Background Associations between body mass index (BMI), outcome, and leukemia‐related factors in children with acute myeloid leukemia (AML) remain unclear. We investigated associations between pretherapeutic BMI, cytogenetic abnormalities, and outcome in a large multinational cohort of children with AML. Methods We included patients, age 2‐17 years, diagnosed with de novo AML from the five Nordic countries (2004‐2016), Hong Kong (2007‐2016), the Netherlands and Belgium (2010‐2016), and Canada and USA (1995‐2012). BMI standard deviations score for age and sex was calculated and categorized according to the World Health Organization. Cumulative incidence functions, Kaplan‐Meier estimator, Cox regression, and logistic regression were used to investigate associations. Results In total, 867 patients were included. The median age was 10 years (range 2‐17 years). At diagnosis, 32 (4%) were underweight, 632 (73%) were healthy weight, 127 (15%) were overweight, and 76 (9%) were obese. There was no difference in relapse risk, treatment‐related mortality or overall mortality across BMI groups. The frequency of t(8;21) and inv(16) increased with increasing BMI. For obese patients, the sex, age, and country adjusted odds ratio of having t(8;21) or inv(16) were 1.9 (95% confidence interval (CI) 1.1‐3.4) and 2.8 (95% CI 1.3‐5.8), respectively, compared to healthy weight patients. Conclusions This study did not confirm previous reports of associations between overweight and increased treatment‐related or overall mortality in children. Obesity was associated with a higher frequency of t(8;21) and inv(16). AML cytogenetics appear to differ by BMI status. In this multinational study of 867 pediatric AML patients diagnosed within the last two decades, we found no evidence of associations between BMI group and risk of relapse, treatment‐related, or overall mortality. We found associations of obesity and a higher frequency of t(8;21) and inv(16).
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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