Age dynamics of somatometric indicators in composition with regards to mortality from circulatory system diseases in the population of northerners

Background. Although obesity is a widely recognized risk factor for cardiovascular diseases in the ontogenetic aspect, the association of long-term changes in indices of body mass, muscle and fat tissues with the mortality from cardiovascular diseases is an open question regarding the North residents especially the population of the Magadan Region. Purpose. To study the dynamics of the frequency of occurrence of various BMI values, as well as informative values of body component composition, comparing the data obtained with the trend of mortality from diseases of the circulatory system in the population of Northerners in order to revise approaches to assessing the risk of mortality from cardiovascular diseases. Materials and methods. A thousand two hundred and ninety-three participants aged 16 to 79 years were included in the study: 543 men and 750 women. The formed samples were divided into seven subgroups according to the age criterion equal to 10 years. The subgroups were examined to study the subjective main somatometric indicators: body mass index, fat and muscle mass indices, and their ratio. Results. We made an analysis of the age-related pictures for the percentage of different BMI categories in the groups of male and female subjects living in the northern region. We could see the fat mass indices exceeding the normative range which was characteristic of the examined men at the age of 40-49 and at 50-59 years old in women, with simultaneous negative dynamics of the muscle mass index. An analysis of the dynamics of the body component composition allowed for summarizing that men and women have a peak in mortality from circulatory system diseases after a 20-year period. Conclusion. Our findings suggest the approaches to assessing the risk of mortality from cardiovascular system diseases requires to be reconsidered since the results emphasize the need to use body mass index in combination with indicators of body component composition. EDN: KGILQM