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Bi-weekly iron dose same as daily in pregnancy: study

20 июня 2013, 11:00
Pregnant women who take an iron supplement twice a week receive the same health benefits as expectant mothers who take a daily dose of the essential mineral, AFP reports citing new research.

The study, carried out by a team from the University of Melbourne, found that taking a daily dose of iron during pregnancy did not provide any additional benefits in terms of birth weight or improved infant growth compared to bi-weekly supplementation.

The findings, published in the PLOS Medicine journal, are a potential global game-changer for the way in which many people suffering from anemia are treated.

The side effects and costs of daily iron supplementation are often seen as a challenge to treating anemia.

The study compared findings from three controlled groups in a semi-rural region of Vietnam.

Some 426 women were given daily iron and folic acid supplements, another 425 twice weekly, while a third group of 407 were given iron, folic acid and micronutrients two times a week.

The researchers found similar birth weight for the women's babies in all groups, and there were also no differences in rates of premature births, stillbirths or early neo-natal death. At six months, there were no differences in the levels of infant hemoglobin, anemia or growth rates.

Furthermore, infants born to mothers in the bi-weekly iron and folic acid supplement group had improved cognitive development compared to mothers in the daily supplement group.

"We have shown that twice weekly antenatal (iron-folic acid supplementation) or )multiple micronutrient supplementation) in an area of Southeast Asia with low anemia prevalence did not produce a clinically important difference in birth weight or infant growth outcomes, compared to daily antenatal (iron-folic acid supplementation)," the study's authors reported.

"Our finding of a significant improvement in infant cognitive outcome at six months of age following twice weekly antenatal (iron-folic acid supplementation) requires further exploration, and provides additional support for the use of intermittent over daily antenatal (iron-folic acid supplementation) regimes in populations with low rates of iron deficiency."

The study was funded by the National Health and Medical Research Council of Australia.

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