 A meta-analysis of community-based studies on quality protein maizeNilupa S. Gunaratna, Hugo De Groote, Penelope Nestel, Kevin V. Pixley and George P. McCabe Food Policy, 2010, vol. 35, issue 3, 202-210 Abstract: Biofortification, or the improvement of nutritional quality in food crops, is a promising strategy to combat undernutrition, particularly among the rural poor in developing countries. However, traditional methods of impact assessment are inadequate for biofortified crops, as they do not consider their nutritional benefits. Evidence for the nutritional impact of maize varieties with improved protein quality, collectively known as quality protein maize (QPM), was evaluated using meta-analysis of randomized, controlled studies in target communities. A new and generalizable effect size was proposed to quantify the impact of QPM on a key outcome, child growth. The results indicated that consumption of QPM instead of conventional maize leads to a 12% (95% CI: 7-18%) increase in the rate of growth in weight and a 9% (95% CI: 6-15%) increase in the rate of growth in height in infants and young children with mild to moderate undernutrition from populations in which maize is the major staple food. The proposed effect size and use of bootstrapping to determine statistical significance addressed some methodological limitations in the existing studies. Keywords: Impact; assessment; Biofortification; Meta-analysis; Bootstrap; Quality; protein; maize (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:jfpoli:v:35:y:2010:i:3:p:202-210 Access Statistics for this article Food Policy is currently edited by J. Kydd More articles in Food Policy from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.