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Anales Venezolanos de Nutrición

versión impresa ISSN 0798-0752

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LOPEZ DE BLANCO, Mercedes et al. International and national references, their use in the study of growth and physical maturation. An Venez Nutr [online]. 2021, vol.34, n.1, pp.37-48.  Epub 25-Feb-2024. ISSN 0798-0752.  https://doi.org/10.54624/2021.34.1.005.

Genetic and environmental factors interact during growth. Final height, tempo of growth, sexual, skeletal and dental maturation have between 41 and 71% heritability. The puberal spurt occurs one year earlier in Africans than in European descendants, Asiatic are intermediate. This pubertal heterogeneity difficult the use of an international reference during this period, although its importance in the comparability of prevalences is unique, as well as the fact that many countries are unable to develop their own references. In the Latin American Region, Argentina, Cuba and Venezuela have long--standing references, Colombia, Ecuador and Perú only recently. In Venezuela, due to the earlier maturation and differences from puberty onwards with anglosaxons, the National Growth and Development Study and the Caracas Longitudinal Study were developed in order to obtain growth charts. Both studies integrated for Clinical Use dual use charts: an Atlas for Bone Maturity Asessment is also available. Due to the multiple use of references (national as well as international) a multicenter national study-PRONNA- is being planned in order to decide which reference is most adequate. This is part of the Growth and Development Research line of study of TAN Group (Food and Nutritional Transition Group).

Palabras clave : Growth; national references; international references; pubertal maturity; bone maturity; Venezuela.

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