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Omar Karlsson . Photo

Omar Karlsson

Postdoctoral fellow

Omar Karlsson . Photo

Patterns in child stunting by age : A cross-sectional study of 94 low- and middle-income countries

Author

  • Omar Karlsson
  • Rockli Kim
  • Grainne M Moloney
  • Andreas Hasman
  • S V Subramanian

Summary, in English

Child stunting prevalence is primarily used as an indicator of impeded physical growth due to undernutrition and infections, which also increases the risk of mortality, morbidity and cognitive problems, particularly when occurring during the 1000 days from conception to age 2 years. This paper estimated the relationship between stunting prevalence and age for children 0-59 months old in 94 low- and middle-income countries. The overall stunting prevalence was 32%. We found higher stunting prevalence among older children until around 28 months of age-presumably from longer exposure times and accumulation of adverse exposures to undernutrition and infections. In most countries, the stunting prevalence was lower for older children after around 28 months-presumably mostly due to further adverse exposures being less detrimental for older children, and catch-up growth. The age for which stunting prevalence was the highest was fairly consistent across countries. Stunting prevalence and gradient of the rise in stunting prevalence by age varied across world regions, countries, living standards and sex. Poorer countries and households had a higher prevalence at all ages and a sharper positive age gradient before age 2. Boys had higher stunting prevalence but had peak stunting prevalence at lower ages than girls. Stunting prevalence was similar for boys and girls after around age 45 months. These results suggest that programmes to prevent undernutrition and infections should focus on younger children to optimise impact in reducing stunting prevalence. Importantly, however, since some catch-up growth may be achieved after age 2, screening around this time can be beneficial.

Department/s

  • Department of Economic History

Publishing year

2023-06-05

Language

English

Publication/Series

Maternal and Child Nutrition

Volume

19

Issue

4

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Economic History

Status

Published

ISBN/ISSN/Other

  • ISSN: 1740-8709