Lomonosov Moscow State University, Anuchin Institute and Museum of Anthropology, Moscow
Permiakova Ekaterina Yurievna: e-mail: ekaterinapermyakova@gmail.com.
Introduction. This study is devoted to the development of BMI percentile standards for Moscow schoolgirls, the comparison this data with the WHO standards, and the evaluation of obesity and overweight frequency in the surveyed group. Materials and methods. According to the standard anthropometric method, 755 Moscow girls aged 7 to 17 years were examined. In accordance with the research aims, the descriptive characteristics of BMI, converted using the LMS transformation method of the variation series on the basis of the WHO tables, were used in the analysis. The result is presented in the form of z-values of the BMI, corresponding to the number of standard deviations from the mean for the reference group. The statistical processing of the results was carried out using standard statistical software packages Statistica 8.0. and Minitab 17.3. Results. Throughout the age range, median values of BMI z-scores reach significantly higher values compared to the reference data in girls aged 7-8, 13, 14 and 16 years, on the remaining intervals these values demonstrate opposite tendency. A more accurate assessment of the changes is provided by the analysis of the percentile BMI standards: variation of the absolute values of the indicator are shifted for the upper bound of the distribution towards higher values in the elementary schoolgirls, and from 14,5 years, on the contrary, towards lower ones. The frequency of overweight and thinness decreases with age, obesity and severe thinness - slightly increases. Conclusion. Evaluation of changes in the BMI of Moscow girls based on WHO reference data (using median z-scores) indicates a multidirectional shift in their values, depending on age. A more complete picture of the changes gives a comparison of the percentile standards. In any case, it seems logical to use national standards of physical development, which allow to give a more adequate assessment of the processes that are taking place.
Moscow schoolgirls; BMI; WHO data; obesity; percentile standards
DOI: 10.32521/2074-8132.2018.1.065-072
Цит.: Permiakova E.Yu. Body mass index percentile standards of Moscow children and adolescents based on WHO data. Part I // Moscow University Anthropology Bulletin (Vestnik Moskovskogo Universiteta. Seria XXIII. Antropologia), 2018; 1/2018; с. 65-72
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