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The impact of nutritional status at diagnosis of childhood acute lymphoblastic leukemia (ALL) on survival rates was assessed in a Hispanic cohort. Children &lt;16 years with newly diagnosed ALL-B from 2011 to 2019 were studied. Overweight and obesity were classified by body mass index (BMI) and Z-score according to WHO and CDC criteria. BMI, weight percentiles for age and Z-Score were assessed using the WHO Anthro (0-5 years) and AnthroPlus (5-19 years) programs. Cox model was used to estimate risk factors for relapse and death; differences between groups were assessed with Student’s T test for parametric and Mann-Whitney U test for non-parametric variables. Disease-free survival (DFS) and overall survival (OS) were determined by the Kaplan-Meier method, calculating time, status, cumulative survival and standard error with a 95% confidence interval. Equal data distribution was estimated with the log-rank test. One-hundred and seventy-two B-ALL children were studied. The overweight-obese group had a non-significant lower DFS (CDC: 54% vs. 60%,  p  = 0.80; WHO: 57% vs. 64%,  p  = 0.89) and OS rate (CDC:76% vs. 82%,  p  = 0.38; WHO:65% vs. 81%,  p  = 0.13). An association between nutritional status determined by CDC and WHO criteria at diagnosis of B-cell ALL and survival rates was not documented.

The Influence of Nutritional Status at Diagnosis of Childhood B-Cell Acute Lymphoblastic Leukemia on Survival Rates: Data from a Hispanic Cohort