Factors Relating to Pregnancy and Birth and the Risk of Childhood Brain Tumors: Results From an Australian Case–Control Study

Kathryn Greenop, Eve Blair, Carol Bower, B.K. Armstrong, Elizabeth Milne

Research output: Contribution to journalArticle

14 Citations (Scopus)
264 Downloads (Pure)

Abstract

Background

Childhood brain tumors (CBT) are the leading cause of cancer death in children, yet their causes are largely known. This study investigated the association between maternal and birth characteristics and risk of CBT.

Procedures

Cases families were recruited from all 10 Australian pediatric oncology centers between 2005 and 2010. Control families were recruited via random-digit dialing, frequency matched to cases on the basis of child's age, sex, and State of residence. Maternal and birth characteristics of children were ascertained by questionnaires. Odds ratios (ORs) and 95% confidence intervals (CI) were estimated using unconditional logistic regression, adjusting for relevant confounders.

Results

For this analysis, data on 319 case children and 1,079 control children were available. No association was found between risk of CBT and birth weight, fetal growth, birth order, gestational age, or maternal body mass index. The ORs for inadequate and excessive maternal gestational weight gain (GWG) (Institute of Medicine 2009 guidelines) were 1.8 (95% CI 1.2–2.6) and 1.4 (95% CI 1.0–2.1), respectively; similar findings for GWG were seen across categories of child's age, fetal growth, maternal body mass index and height, maternal smoking, and parental education. Risk of low grade glioma appeared increased with preterm birth (OR 1.6 (95% CI 0.8–3.1) and admission to neonatal intensive care (NICU) for >2 days (OR 1.7, 95% CI 0.9–3.6).

Conclusion

We found little evidence of associations between risk of CBT and most birth characteristics. The associations we observed with GWG, prematurity and NICU admission require corroboration in other studies. Pediatr Blood Cancer 2014;61:493–498. © 2013 Wiley Periodicals, Inc.

Original languageEnglish
Pages (from-to)493-498
JournalPEDIATRIC BLOOD & CANCER
Volume61
Issue number3
Early online date26 Aug 2013
DOIs
Publication statusPublished - Mar 2014

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