Can Vitamin A supplements help improve child survival?
About 6.9 million children younger than 5 years die every year worldwide; 43% of these deaths occur within the first 4 weeks of life; the neonatal period. India is one of the countries that is worst off - a quarter of all neonatal deaths in the world occur in India alone.
How to reach MDG4?
There is an urgent need to identify methods to accelerate reductions in neonatal and infant mortality to achieve Millennium Development Goal 4, which aims to reduce child mortality by two-thirds between 1990 and 2015. Could neonatal Vitamin A supplementation aid child survival? Several of the researchers affiliated to CISMAC have been conducting the study Efficacy of early neonatal supplementation with vitamin A to reduce mortality in infancy in Haryana, India, that was recently published in the Lancet.
Vitamin A deficiency is a public health problem
Vitamin A is an essential nutrient that is provided in the diet when children have access to adequate foods. Vitamin A supplementation of children older than 6 months reduces child mortality in countries where vitamin A deficiency is a problem. In many countries, mostly in Africa and Southeast Asia, vitamin A deficiency is a public health problem affecting pregnant women and children aged 3–5 years. Dietary deficiency of vitamin-A-rich foods in mothers reduces concentrations of vitamin A in breast milk and transport of maternal vitamin A to the fetus through the placenta. Deficiency of vitamin A in early infancy might result from impaired vitamin A status of the mother.
The national programme in India recommends doses of vitamin A every 6 months starting at 9 months of age, but a national survey showed that only 15.9 % of children aged 12-35 months had received vitamin A in the previous 6 months. Preventing vitamin A deficiency in young children is a priority.
The study site: Haryana State
The Lancet study was conducted in the districts Faridabad and Palwal in the state of Haryana, India, between June 2010 and July 2012. In the study area, about half of families are nuclear (a family group consisting of a pair of adults and their children), the median family size is six, half of mothers of young children have never been to school, and most women do not work outside the home.
All women of reproductive age (15-49 years) who were residents of the study area were included in continuing pregnancy surveillance. Study workers followed up pregnancies until delivery and attempted to report new births to the coordinators within 12 hours, who in turn informed enrolment workers immediately. Newborns were supplemented with vitamin A in the first 72 hours of life.
In the study period the researchers screened 47 777 neonates and randomly assigned 44 984 to receive vitamin A (22 493) or placebo (22 491). Between supplementation and 6 months of age, 656 infants died in the vitamin A group. In the placebo group the number was 726. These findings were consistent with a possible reduction of 10% in mortality between supplementation and six months in supplemented newborns. Supplementation with vitamin A within the first 72 hours of life was generally safe and well tolerated.
Similar trials in Ghana and Tanzania
This Indian study is a part of a larger group of clinical trials that also includes large, randomised control trials in Ghana and Tanzania: Efficacy of Newborn Vitamin A Supplementation Versus Placebo in Improving Child Survival (NeoVitA Trial). The findings from these studies when viewed together will enable determination of an appropriate public health policy on whether neonatal vitamin A supplementation should be recommended.
Read the article here:
Efficacy of early neonatal supplementation with vitamin A to reduce mortality in infancy in Haryana, India (Neovita): a randomised, double-blind, placebo-controlled trial.
Mazumder S, Taneja S, Bhatia K, Yoshida S, Kaur J, Dube B, Toteja GS, Bahl R, Fontaine O, Martines J, Bhandari N; for the Neovita India Study Group. Lancet. 2014 Dec 10