DETERMINATION OF WAIST CIRCUMFERENCE IN ADOLESCENTS AS A PREDICTION TOOL OF CARDIOVASCULAR RISK FACTORS

Abstract

Objective: to assess the efficiency of WC at teenagers in prognostication of cardiovascular risk factors Design and method: Cross-sectional study developed with 1519 adolescents aged 12-13 years (average age, standard deviation 12.3 + 0.46 years). The prevalence of hypertension was assessed and its relationship with waist circumference. Criteria for assessing blood pressure of adolescents are identified by the following data: normal blood pressure (systolic and dyastolic blood pressure <89 percentile); high normal blood pressure (systolic and dyastolic blood pressure < 90 and 94 percentile); hypertension (systolic and dyastolic blood pressure 95 percentile). The analysis and processing of statistical data were carried out using the SPSS (version 22) program. The Pearson Chi squared test was used for comparison between groups and the presence of relationships between them or Fisher test for the difference between the proportions. The criterion for the statistical significance of the obtained results was considered the value of p <0.05. ROC analysis was used to study the relationship between waist circumference and overweight/obesity. The distinctive impact of waist circumference on the development of these states was expressed as the area under the curve (AUC 95% CI) Results: From 1519 studied teenagers of 12-13 years, boys were 49.1% (n=745), girls 50.9% (n=774) respectively. Population with normal BP composed 62.7%, normal raised blood pressure - 24.8%, Hypertension-12.4%. There were conducted measurements of waist circumference as a method of indirect assessment of abdominal obesity. There was revealed WC 90P 98.5% (n=939) of teenagers that shows insignificant number of the adolescents suffering from abdominal obesity. The distribution by sex was: with a normal waist circumference value 98.8% among boys, 94.7% girls respectively, girls are more likely to have abdominal obesity than boys, (Chi squared test = 19.940, df = 1, P 0.001) Conclusions: waist circumference rates are not as popular among children and adolescents in comparison with adults. According the obtained data of high sensitivity and specificity, it is possible to recommend active use of waist circumference in clinical practice for the early detection for the assessment of the risk of developing cardiovascular diseases regarding maturity