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Original Articles

The Relation of Maternal Blood Arsenic to Anemia During Pregnancy

, MD, PhD, , MD, DMSc, , PhD, , PhD & , PhD
Pages 42-57 | Received 01 Aug 2013, Accepted 14 Apr 2014, Published online: 30 Jan 2015
 

Abstract

To clarify the relationship of prenatal arsenic exposure to hemoglobin concentrations and anemia during pregnancy, a longitudinal study was conducted of 364 participants during early pregnancy from October 2006 to March 2011 in Tehran, Iran. Maternal whole blood (taken between 8–12 and 20–24 weeks of gestation, and at delivery) and umbilical cord blood samples were collected for arsenic measurement. The mean concentration of maternal blood arsenic in the first trimester of pregnancy was significantly lower in anemic women compared with non-anemic participants (mean ± SD: 12.4 ± 3.4 versus 14.8 ± 4.0 μg/L, respectively, p < 0.001). Maternal whole blood arsenic levels in the first and third trimesters were significantly (p < 0.05) correlated with hemoglobin concentrations measured throughout gestation (r = 0.312, 0.424, and 0.183). Multiple logistic regression analysis demonstrated that increased maternal blood arsenic levels in the first trimester were significantly negatively associated to anemia during pregnancy (OR = 0.85, CI: 0.77–0.94, p < 0.01). The present study showed that prenatal blood arsenic exposure was not a risk factor for the occurrence of anemia.

Additional information

Funding

This study was supported in joint collaboration by the Japanese National Institute of Occupational Safety and Health, a Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science, and Tehran University of Medical Sciences.

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