Birth weight and body mass index z-score in childhood brain tumors: A cross-sectional study.

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Birth weight and body mass index z-score in childhood brain tumors: A cross-sectional study.

Sci Rep. 2018 Jan 26;8(1):1642

Authors: Wang KW, de Souza RJ, Fleming A, Johnston DL, Zelcer SM, Rassekh SR, Burrow S, Thabane L, Samaan MC

Abstract
Children with brain tumors (CBT) are at higher risk of cardiovascular disease and type 2 diabetes compared to the general population, in which birth weight is a risk factor for these diseases. However, this is not known in CBT. The primary aim of this study was to explore the association between birth weight and body mass measures in CBT, compared to non-cancer controls. This is a secondary data analysis using cross-sectional data from the CanDECIDE study (n = 78 CBT and n = 133 non-cancer controls). Age, sex, and birth weight (grams) were self-reported, and confirmed through examination of the medical records. Body mass index (BMI) was calculated from height and weight measures and reported as kg/m2. BMI z-scores were obtained for subjects under the age of 20 years. Multivariable linear regression was used to evaluate the relationship between birth weight and BMI and BMI z-score, adjusted for age, sex, puberty, and fat mass percentage. Higher birth weight was associated with higher BMI and BMI z-score among CBT and controls. In conclusion, birth weight is a risk factor for higher body mass during childhood in CBT, and this may help the identification of children at risk of future obesity and cardiometabolic risk.

PMID: 29374278 [PubMed - in process]

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