关键词: 儿童青少年, 肥胖类型, 血压偏高, 交互作用

Abstract: Objective To investigate the additive interaction of different types of obesity on high blood pressure in children and adolescents,in order to provide basis for controlling blood pressure level effectively. Methods Data were collected from a cross-sectional survey of children and adolescents with a multi-stage cluster sampling in seven provinces and cities in China in 2012. T test and chi-square test were used to analyze the differences between continuous variables and classified variables,respectively. Logistics regression was used to analyze the correlation between different types of obesity and high blood pressure,and the interaction between general obesity and simple abdominal obesity was analyzed. Results A total of 40 015 children and adolescents were included in this study. The proportion of children with general obesity,simple abdominal obesity and compound obesity with high blood pressure was 17.7%,12.0% and 23.2%,respectively. Compound obesity had a greater effect on high blood pressure in boys and urban children and adolescents (boys OR=2.80,95%CI: 2.55—3.07; urban OR=2.95,95%CI: 2.69-3.24),the same results were found for the high systolic and diastolic blood pressure. In children and adolescents with high blood pressure,the additive interaction of general obesity and simple abdominal obesity caused the high blood pressure in 22% of the population. Conclusions General obesity has a greater effect on blood pressure than simple abdominal obesity. Among different types of obesity,compound obesity is still the most risk factor leading to high blood pressure. In children and adolescents with high blood pressure,general obesity and simple abdominal obesity have additive interaction.

Key words: children and adolescents, types of obesity, high blood pressure, interaction