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OP-143 A single-stage population-based study of the relationship between cognitive and somatic health parameters in children of school age
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  1. George Karkashadze,
  2. Leyla Namazova-Baranova,
  3. Elena Kaytukova,
  4. Elena Vishneva,
  5. Andrey Surkov,
  6. Tinatin Gogberashvili,
  7. Tatiana Konstantinidi,
  8. Olga Gordeeva,
  9. Kamila Efendieva,
  10. Konstantin Volkov,
  11. Aishat Gazalieva,
  12. Margarita Soloshenko,
  13. Svetlana Kovdratova,
  14. Eka Abashidze,
  15. Julia Nesterova,
  16. Leonid Yatsyk,
  17. Natalia Zhurkova,
  18. Grigoriy Revunenkov
  1. Research Institute of Pediatrics and Children’s Health in Petrovsky National Research Centre of Surgery, Moscow, Russian Federation

Abstract

Aim The aim of the study was to determine the links between cognitive, educational and somatic factors in a cohort of Russian 11-year-olds.

Material and Method The study included 5th grade students of Russian schools from large cities of all federal districts of the Russian Federation (RF). The links between integrative cognitive success, cognitive test results, academic performance, leading hand and somatic factors were analyzed: the presence of skin pathology, bronchial asthma, orthopedic, ophthalmological disorders, visual acuity, body mass index, respiratory disorders, electrocardiography, ultrasound examination of the thyroid gland, laboratory blood tests.

Results The results of the survey of 1036 participants, 51% of them girls, were admitted to the analysis. It was found that the concentration of iron is directly related to integrative cognitive success (p = 0,019) and school performance (p = 0,030; 0,036; 0,042 for different subjects), the relationship is especially strong between the subgroups of participants identified by iron concentration above and below 26.45 mmol/l (р = 0,001). Clinical levels of erythrocytes are more strongly associated with integrative cognitive success and individual cognitive functions than other factors: in erythropenia, cognitive parameters are worse. The presence of thyroid cysts directly correlates with some of the worst cognitive performance parameters. High body mass index and low hemoglobin are associated with poorer academic performance. The frequency of myopia reaches 27.9%.

Conclusions From a wide range of somatic parameters, the iron index stands out as the most strongly associated with cognitive activity and educational success. This indicates the importance of a full intake of iron with nutrition and monitoring its level, especially during the periods of the most active formation of cognitive functions in early and preschool age. It is necessary to study in-depth the norms of iron concentration in the blood in terms of their influence on the formation of cognitive functions in children.

  • cognitive functions
  • academic performance
  • children
  • iron
  • somatic factors

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