Correlation of Body Length and Certain Linear Parameters of the Tubular Bones of the Hand in Tajik Children and Adolescents

The intensifying integration processes between the Russian Federation and the Republic of Tajikistan update creation of databases and development of regression models that allow determining the body length by individual bones in representatives of both genders of this ethnic group. The aim of the study was to verify application of regression equations to determine the body length in Tajik children and adolescents, aged 6–17, according to the linear parameters of the short tubular bones of the hand. Material and methods. There were performed osteometric studies of 251 X-ray images of the right hand to determine the body length of the examined individuals. Linear regression analysis was carried out to identify dependence of the body length on linear parameters of the short tubular bones of the hand. The quality of the regression was assessed through the coefficient of determination R2 and significance by the F-criterion. There were considered coefficients of determination higher than 0.8. Results. It was found that for boys the linear parameter of the length of the tubular bones of the hand was the best to predict the body length. When applying regression equations to determine the body length according to the length of the hand rays in boys, it was determined that the best results were obtained when applying a model developed for the bones of the 2nd and 4th hand rays. For Tajik girls, regression models that included parameters of the length and width of the tubular bones of the hand were more reliable. More reliable results for identifying the body length of Tajik children were obtained when regression models were developed separately for individuals of different genders. Conclusion. The results obtained demonstrated that osteometric parameters of the short tubular bones of the hand can be used to assess the body length of Tajik children and adolescents of both genders.