Coffee in Pregnancy Linked to Childhood Leukemia Risk

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Coffee in Pregnancy Linked to Childhood Leukemia Risk
Coffee in Pregnancy Linked to Childhood Leukemia Risk

(HealthDay News) — Maternal coffee consumption during pregnancy is associated with increased risk of childhood acute leukemia (AL), according to a meta-analysis published in the February issue of the American Journal of Obstetrics & Gynecology.

Jian Cheng, from Anhui Medical University in China, and colleagues conducted a systematic literature review to examine the correlation between maternal coffee consumption during pregnancy and childhood AL, including acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML). Included studies reported the odds ratios (OR) for childhood AL with respect to maternal coffee drinking in pregnancy.

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Based on meta-analysis of seven studies, the researchers found that the combined OR relating to the relationship of maternal coffee consumption during pregnancy and childhood AL was 1.22 for ever drinkers; 1.16 for low to moderate-level drinkers; and 1.72 for high-level drinkers, compared with non- or the lowest-level drinkers. 

Maternal coffee consumption (high-level drinkers vs. non- or the lowest-level drinkers) was statistically significantly associated with childhood ALL and AML (ORs, 1.65 and 1.58, respectively). There was a linear dose-response relationship for coffee consumption and childhood AL (P for nonlinearity = 0.68), including childhood ALL and AML.

"The findings of the meta-analysis suggest that maternal coffee consumption during pregnancy may increase the risk of childhood AL," the researchers wrote.

References

  1. Cheng J, Su H, Zhu R, et al. Maternal coffee consumption during pregnancy and risk of childhood acute leukemia: a metaanalysis. Am J Obstet Gynecol. 2014;210:151.e1-10.

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