Secular trends of sizes at birth in Russian infants born between 1987 and 2002

Anna Tretyak1, Elena Godina, Ludmila Zadorozhnaya

  • 1Department of Anthropology, Faculty of Biology, Moscow State University, Moscow, Russia. ania_83@mail.ru

Insights

Newborn body dimensions changed between 1987 and 2002. While infants in Moscow and Saratov grew larger, those in Khvalynsk showed decreased length and weight, possibly due to socio-economic factors.

Area of Science:

  • Pediatrics
  • Anthropology
  • Public Health

Background:

  • Secular trends in human growth are influenced by environmental factors.
  • Understanding changes in newborn anthropometry is crucial for assessing population health.
  • Previous studies have indicated geographical variations in infant growth patterns.

Purpose of the Study:

  • To analyze secular changes in body dimensions of newborns from distinct geographical locations.
  • To compare anthropometric data between 1987 and 2002 across urban and rural settings.
  • To investigate potential links between socio-economic changes and newborn body size.

Main Methods:

  • Retrospective analysis of anthropometrical data from medical records.
  • Inclusion of 1,174 singleton, full-term, non-pathological newborns.
  • Comparison of body length and weight at birth between two time points (1987 and 2002).

Main Results:

  • Infant body length and weight increased in Moscow and Saratov from 1987 to 2002.
  • A significant decrease in body length was observed for boys in Khvalynsk.
  • A trend towards decreased body weight was noted for both boys and girls in Khvalynsk.

Conclusions:

  • Secular changes in newborn body dimensions exhibit geographical heterogeneity.
  • Socio-economic factors may play a significant role in observed trends of infant growth.
  • Further research is needed to elucidate the specific mechanisms driving these anthropometric shifts.

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