Abstract
The aim of the study is a comparative analysis of the linear parameters of the length and width of the diaphysis of the middle phalanges in children and adolescents of Tajikistan and Western India, and also the possibility of using these linear parameters to establish the age of children of the compared ethnic groups. On 325 radiographs of the right hand in male children and adolescents of the Kanibadam region of the Republic of Tajikistan and the city of Mumbai (Western India) at the age of 6-17 years, the length of the middle phalanges and the width of their diaphysis were determined. To determine the relationship between the age of children of the compared ethnic groups and the linear parameters of the length and width of the shaft of the phalanges, Spearman's nonparametric correlation coefficient was used. Comparative assessment of the values of indicators by age was carried out by the method of parametric and non-parametric analysis. In boys of Tajikistan, the closest correlation was established between the age of children and the length of the middle phalanx of the third finger, while in their Indian peers this ratio was determined evenly for the II-IV fingers of the hand. The width of the diaphysis of the phalanges of the fourth finger increased most significantly with age in boys of Tajikistan, and in the Indians, the width of the third finger, the smallest increase in the width of the diaphysis in the compared groups was determined for the phalanges of the second finger. The linear parameters of the middle phalanges of the hand can be used to identify the age of children and adolescents in Tajikistan and Western India at the age of 6-17 years. For Tajik children, the best predictor of age is the linear parameter of the length of the middle phalanx of the index, and for their Indian peers, the length of the middle phalanx of the II-IV fingers is equally.
Highlights
The aim of the study is a comparative analysis of the linear parameters of the length and width of the diaphysis of the middle phalanges in children and adolescents of Tajikistan and Western India, and the possibility of using these linear parameters to establish the age of children of the compared ethnic groups
In boys of Tajikistan, the closest correlation was established between the age of children and the length of the middle phalanx of the third finger, while in their Indian peers this ratio was determined evenly for the II-IV fingers of the hand
The width of the diaphysis of the phalanges of the fourth finger increased most significantly with age in boys of Tajikistan, and in the Indians, the width of the third finger, the smallest increase in the width of the diaphysis in the compared groups was determined for the phalanges of the second finger
Summary
Цель исследования - определить в сравнительно-этническом и возрастном аспектах линейные параметры длины средних фаланг и ширины их диафиза у детей и подростков Таджикистана и Западной Индии, установить возможность использования этих показателей для установления возраста детей сравниваемых групп. Проведенное исследование позволило установить, что изменение линейных параметров длины и ширины диафизов СФ кисти у детей и подростков сравниваемых этнических групп в возрасте 6-17 лет происходит неодинаково. Возраст=-4,35+0,83×длина СФ II, Возраст=-4,89+0,71×длина СФ III, Возраст=-5,38+0,77×длина СФ IV, Возраст=-1,80+0,87×длина СФ V, Согласно вычисленному угловому коэффициенту линейной регрессии для зависимости длины СФ от возраста, у мальчиков Таджикистана наиболее быстрый рост в длину наблюдается у СФ III пальца кисти (b=1,03), затем IV-го (b=0,91), затем II-го (b=0,83) и самый медленный рост V-го (b=0,74).
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