Jump to: Page Content, Site Navigation, Site Search,
You are seeing this message because your web browser does not support basic web standards. Find out more about why this message is appearing and what you can do to make your experience on this site better.
BMJ 2008;336:1385-1386 (21 June), doi:10.1136/bmj.39575.486609.80 (published 16 June 2008)
Benefit depends on the setting, baseline infant mortality, and vitamin A deficiency
| The first 150 words of the full text of this article appear below. |
Vitamin A supplementation at 6-72 months of age has become a mainline intervention for improving survival in populations with endemic vitamin A deficiency.1 However, in the same setting, supplementation at 1-6 months of age has little or no effect on mortality, whether given with immunisation or not.2 3
Giving vitamin A supplements to newborns within the first few days of life significantly reduced early infant mortality in Asian populations with endemic maternal vitamin A deficiency andhigh infant mortality.4 5 6 In Africa, however, this strategy had no beneficial effect on early infant survival in an urban setting7 or—as reported in the accompanying paper by Benn and colleagues—in a peri-urban setting.8
How can these findings be reconciled? Some might suggest that a meta-analysis of all the newborn dosing studies would provide a more accurate estimate of the true effect on early infant mortality. But combining these studies would be a fundamental mistake, because the
James M Tielsch, professor
1 Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
jtielsch@jhsph.edu
Read all Rapid Responses