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BMC Public Health. 2007 Jul 3;7:136.

Vitamin and mineral supplements in pregnancy and the risk of childhood acute lymphoblastic leukaemia: a case-control study.

Author information

1
Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand. john.dockerty@stonebow.otago.ac.nz

Abstract

BACKGROUND:

An earlier case-control study from Western Australia reported a protective effect of maternal folic acid supplementation during pregnancy on the risk of childhood acute lymphoblastic leukaemia (ALL). The present study tested that association.

METHODS:

A national case-control study was conducted in New Zealand. The mothers of 97 children with ALL and of 303 controls were asked about vitamin and mineral supplements taken during pregnancy.

RESULTS:

There was no association between reported folate intake during pregnancy and childhood ALL (adjusted odds ratio (OR) 1.1, 95% confidence interval (CI) 0.5-2.7). Combining our results with the study from Western Australia and another study from Qu├ębec in a meta-analysis gave a summary OR of 0.9 (95% CI 0.8-1.1).

CONCLUSION:

Our own study, of similar size to the Australian study, does not support the hypothesis of a protective effect of folate on childhood ALL. Neither do the findings of the meta-analysis.

PMID:
17605825
PMCID:
PMC1925082
DOI:
10.1186/1471-2458-7-136
[Indexed for MEDLINE]
Free PMC Article
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