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This paper estimated the relationship between stunting prevalence and age for children 0\u201359 months old in 94 low\u2010 and middle\u2010income countries. The overall stunting prevalence was 32%. We found higher stunting prevalence among older children until around 28 months of age\u2014presumably 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\u2014presumably mostly due to further adverse exposures being less detrimental for older children, and catch\u2010up\u00a0growth. 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\u00a0and sex. Poorer countries and households had a higher prevalence at all ages\u00a0and 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\u2010up growth may be achieved after age 2, screening around this time can be beneficial.<\/jats:p>","DOI":"10.1111\/mcn.13537","type":"journal-article","created":{"date-parts":[[2023,6,8]],"date-time":"2023-06-08T00:43:13Z","timestamp":1686184993000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":52,"title":["Patterns in child stunting by age: A cross\u2010sectional study of 94 low\u2010 and middle\u2010income countries"],"prefix":"10.1111","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7201-7595","authenticated-orcid":false,"given":"Omar","family":"Karlsson","sequence":"first","affiliation":[{"name":"Takemi Program in International Health, Harvard T.H. 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