Impact of Prenatal Vitamin/Mineral Supplements on Perinatal Mortality

2014-08-27 03:52:21 | BioPortfolio


The purpose of this study is to determine whether a daily prenatal supplement of iron plus folic acid or a daily prenatal supplement with multiple vitamins and minerals given to women from their first prenatal visit through delivery reduces perinatal mortality compared with a daily prenatal supplement of folic acid alone.


In the project area in China, the rate of perinatal mortality (stillbirths and infant deaths within 6 days of birth) is two times that of the United States. Causes of perinatal mortality include, but are not limited to, low birth weight and preterm delivery. Anemia (low hemoglobin) among pregnant women is associated with low birth weight and preterm delivery and also is elevated in the project area. Supplements of iron, folic acid, and other vitamins and minerals can prevent anemia among pregnant women, but the effects of these supplements on other maternal and infant health outcomes are unclear.

Since 1993, the People's Republic of China has recommended that newly married women, and those who plan pregnancy, take 400μg of folic acid daily through the first trimester of pregnancy. Although WHO recommends that pregnant women take iron and folic acid supplements, there is currently no national recommendation that pregnant women in China take iron or other vitamin or mineral supplements (other than folic acid). UNICEF is now testing a prenatal vitamin and mineral supplement in programs to prevent low birth weight. Our study will provide additional information about the health impact of the UNICEF prenatal supplement versus an iron and folic acid supplement versus folic acid alone.


- Infants of women who receive daily prenatal supplements that contain 400μg folic acid alone, will be compared with infants of women who receive daily supplements that contain 30 mg iron and 400 μg folic acid.

- Infants of women who receive daily supplements that contain 30 mg iron and 400 μg folic acid will be compared with infants of women who receive a daily supplement containing 30 mg iron, 400μg folic acid and other vitamins and minerals (UNICEF formulation).

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention


Perinatal Mortality


folic acid, folic acid plus iron, supplements with multiple vitamins and minerals


Fengrun Maternal and Child Health Institute




Centers for Disease Control and Prevention

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:52:21-0400

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The active metabolite of FOLIC ACID. Leucovorin is used principally as its calcium salt as an antidote to folic acid antagonists which block the conversion of folic acid to folinic acid.

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Derivatives of folic acid (pteroylglutamic acid). In gamma-glutamyl linkage they are found in many tissues. They are converted to folic acid by the action of pteroylpolyglutamate hydrolase or synthesized from folic acid by the action of folate polyglutamate synthetase. Synthetic pteroylpolyglutamic acids, which are in alpha-glutamyl linkage, are active in bacterial growth assays.

A nutritional condition produced by a deficiency of FOLIC ACID in the diet. Many plant and animal tissues contain folic acid, abundant in green leafy vegetables, yeast, liver, and mushrooms but destroyed by long-term cooking. Alcohol interferes with its intermediate metabolism and absorption. Folic acid deficiency may develop in long-term anticonvulsant therapy or with use of oral contraceptives. This deficiency causes anemia, macrocytic anemia, and megaloblastic anemia. It is indistinguishable from vitamin B 12 deficiency in peripheral blood and bone marrow findings, but the neurologic lesions seen in B 12 deficiency do not occur. (Merck Manual, 16th ed)

Proteins involved in the transport of FOLIC ACID and folate derivatives across the CELLULAR MEMBRANE.

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