Статья
The research purpose is to identify indicators statistically significantly associated with the probability of assigning preschool children to health groups, based on regression modeling of monitoring data.
Methods and organization of the research. A total of 3035 children aged 3-7 years from 38 preschool educational institutions across 14 regions of Russia were examined (May-September 2025). The health groups (I-V) were determined based on medical records. Anthropometric and functional indicators, as well as motor fitness and sports club attendance, were assessed. To analyze statistical relationships between preschoolers' membership in medical health groups and the studied indicators, ordinal logistic regression was used, performed separately for age groups 3-4, 4-5, 5-6, and 6-7 years.
Results and discussion. In each age group, the I-II health groups predominated. In regression models, indicators of motor fitness and morphofunctional status were statistically significantly associated with the health group: an increase in chest circumference, a shorter 6-minute running time, and faster completion of the 3×10-meter shuttle run were associated with a decreased probability of a child being assigned to a health group with chronic diseases. In children aged 5–6 years, an increase in resting heart rate was statistically associated with belonging to medical health groups with chronic diseases, while in children aged 6-7 years, such membership was statistically associated with attendance at sports sections (additional activities outside the preschool educational institution).
Conclusion. Children's membership in medical health groups is statistically associated with indicators of physical development (chest circumference), endurance, speed-coordination fitness, and participation in sports sections; higher resting heart rate values are associated with assignment to health groups with chronic diseases.
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