INTERGROWTH-21st Project international INTER-NDA standards for child development at 2 years of age: an international prospective population-based study

Abstract

From this large, healthy and well-nourished, international cohort, we have constructed, using the WHO prescriptive methodology, international INTER-NDA standards for child development at 2 years of age. Standards, rather than references, are recommended for population-level screening and the identification of children at risk of adverse outcomes.