Approaches to Substantiating Population Standards of Body Roundness Index for the Russian Population (Using the Example of the Adult Population of the Omsk Region)

Aim. To substantiate the approximate population standards of the body roundness index for the adult population of the Russian Federation.

Materials and methods. The object of the study is the adult population of the Omsk region (1,470 thousand people). In 2023, a sample was formed, based on gender, age and place of residence (Omsk city and rural areas of the region) in the number of 506 people, representative by age and gender of the adult population of the region (231 men and 275 women) with The median age was 45 (32; 59) years. The subject of the study is somatometric parameters of the nutritional status of the adult population of the Omsk region: Body Roundness Index (BRI), body mass index.

Results. The parameters of descriptive BRI statistics for different sample groups are calculated. The comparative analysis shows the inapplicability of the ranges of BRI standards developed for various groups of the adult population in other countries of the world to the studied population. Based on the analysis of the literature, the most reasonable approach to determining the boundaries of the statistical norm of BRI has been determined: using the ranges of percentile values of the variational series of BRI values as boundaries: P2.3, P16, P84, P97.7. Using this approach, statistical normative ranges of the index for the adult population of the region are proposed: "high" values – above 6.75, "above normal" – ranging from 4.83 to 6.75, "average" – from 2.16 to 4.83, "below average" – from 1.39 to 2.15, "low" – less than 1.39.

Conclusion. In this study, based on the study of a representative sample, approximate population standards of the BRI index for the adult population of Russia are proposed.

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