Клиническая медицина Медицина и экология, 2021, 3
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Journal3-21
| MATERIALS AND METHODS
519 adolescents aged 14-17 years were examined, of which 349 were included in the main group (186 boys and 163 girls) and 170 in the control (89 boys and 81 girls) groups. The children of the main group lived in the village of Kenkiyak, Temir district of the Ak- tobe region of Kazakhstan, where an oil field has been developed since 1959. As a control group, children living in the village of Kobda, an environ- mentally friendly area, where there are no oil and gas enterprises, were examined. Inclusion criteria: adolescent children living in the survey area for at least 10 years or more; with informed consent to conduct research and process personal data, in accordance with the requirements of the Ethical committee of West Kazakhstan Medical University named after Marat Ospanov. The exclusion criteria: the presence of acute and chronic inflammatory diseases from the examination program; autoimmune, hereditary and mental diseases. To determine physical development, body length was measured in centimeters using a stadiometer, weight – in kilograms using a floor scale. The indicators of the harmony of physical development in terms of body length and weight were determined using centile scales of nomograms proposed and tested by N.A. Matveeva and Yu. G. Kuzmichev. This method was developed on the basis of the centile method recommended by the WHO in the form of an international standard as a screening test to identify children 5-17 years old with developmental disabilities. The indiactors of physical development according to centile scales are presented in a system of two coordinates, where the vertical indicates the body length (cm), and the horizontal indicates the body weight (kg). One-dimensional age centile scales are plotted in parallel to each coordinate axis,: on the right scales for body length, above - for body weight. In the center there is a nomogram for assessing the correspondence of body weight to its length. Numbers 1-8 on scales and nomo- grams indicate centile intervals. The average val- ues of length and body weight, limited at the 4th and 5th centile intervals, are shaded; the medi- ans (50 th centiles) are marked with a dotted line. Body length was assessed using one- dimensional centile scales. For this, the value of the child's body length was found on the ordinate axis. From this point, the perpendicular was re- stored to its intersection with the age scale of body length located in the right margin of the figures. The indicators that fell into the 4-5 th in- tervals were characterized as average, in the 3 rd – low, in the 2 nd – low, in the 1 st – very low, 6 th – increased, in the 7 th – high, in 8 th – very high. Body weight was assessed using age cen- tile scales located in the upper field of the figures and nomograms in which centile body weight intervals are presented per unit of body length (weight index/body length). The assessment of body weight by age centile scales was carried out similarly to the as- sessment of body length. According to the nomograms proposed for use, the physical development of children was regarded as harmonious if the body weight corre- sponded to the 4-5 interval; disharmonious – when assessed by the 2-3 rd or 6-7 th intervals; sharply disharmonious – when assessed by the 1 st or 8 th centile interval of the nomogram. In this regard, 3 groups of physical devel- opment were distinguished: normal physical de- velopment, risk, with deviations in physical devel- opment. The concept of «normal physical develop- ment» corresponds to an average, decreased or жүктеу/скачать 3,93 Mb. Достарыңызбен бөлісу:
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