[Association between hyperuricemia and incidence risk for cardiometabolic abnormity in children]

Objective: To investigate the relationships between hyperuricemia and the incidence risk for cardiometabolic abnormity in children. Methods: Data were obtained from School-based Cardiovascular and Bone Health Promotion Program. In 2017, a total of 15 391 children aged 6-16 years in Beijing were selected through stratified cluster sampling at baseline survey. Follow-up investigation was conducted in 2019. Logistic regression model was used to analyze the relationships of uric acid quartiles and change in uric acid levels with incidence risks for cardiometabolic abnormity (hypertension, hyperglycemia and dyslipidemia). Results: A total of 8 807 children (4 376 boys, 4 431 girls) were included in the analysis, the average age of the children was (11.1±3.3) years at baseline survey. The adjusted odds ratios (ORs) and 95% confidence intervals (CIs) of incidence risk for hypertension in the third and fourth quartiles of the UA were 1.39 (1.11-1.75) and 1.56 (1.19-1.81), respectively. The ORs and 95% CIs of risk for high LDL-C in the second, third and fourth quartiles were 1.88 (1.16-3.05),1.98 (1.23-3.17) and 2.25 (1.42-3.57). The uric acid level increased by one standard deviation, the risk increased by 17% for hypertension and 27% for high LDL-C. The uric acid level increased by 10 μmol/L, the risk increased by 2.1% for hypertension and 2.9% for high LDL-C. The gender-stratified analysis showed that the similar results. The ORs and 95% CIs were 1.32 (1.09-1.60) and 1.50 (1.05-2.16) for hypertension, 1.90 (1.38-2.60) and 2.96 (1.58-5.52) for high TC, 1.78 (1.26-2.51) and 2.84 (1.60-5.03) for high LDL-C in the groups of newly diagnosed hyperuricemia and persistent hyperuricemia. Conclusions: Higher uric acid level was associated with increased incidence risks for hypertension, abnormal TC and LDL-C. Maintaining optimal uric acid level by children might contribute to the early prevention of cardiovascular diseases.

[Characteristics of cardiometabolic risk factors of children and adolescents aged 6-17 years in seven cities in China from 2013 to 2015]

Objective: To describe characteristics of cardiometabolic risk factors of children and adolescents aged 6-17 years in 7 cities in China from 2013 to 2015. Methods: Data was from the China Child and Adolescent Cardiovascular Health (CCACH) study. 12 590 children and adolescents were selected from 24 schools (3 kindergartens, 7 primary schools, 7 junior high schools and 7 senior high schools) in seven cities (Changchun, Yinchuan, Beijing, Jinan, Shanghai, Chongqing and Tianjin) during 2013-2015 by using a stratified cluster random sampling method. The demographic characteristics, e.g. birth date, feed status and history of disease, were collected by questionnaires. Anthropometric measurements, i.e. weight, height, waistline, blood pressure, total cholesterol, fasting plasma glucose, triglyceride and high-density lipoprotein, were also collected. The detection rate of metabolic syndrome was calculated respectively according to "international diabetes federation standard " and "definition and prevention of metabolic syndrome in Chinese children and adolescents " . Results: The prevalence of cardiometabolic risk factors such as obesity, hypertension, hyperglycemia and dyslipidemia was 12.0%(1 497/12 491), 18.2%(2 193/12 035), 24.4%(3 028/12 422) and 15.8%(1 977/12 490), respectively. The prevalence of these four cardiometabolic risk factors in males was significantly higher than that in females (all P values<0.05). The prevalence of metabolic syndrome was 3.3%(272/8 328) with international diabetes federation 2007 definition and 5.4% (453/8 325) with Chinese definition among children above 10 years old. The prevalence of hypertension, hyperglycemia, hypertriglyceridemia, high total cholesterol, low high-density lipoproteincholesterol and dyslipidemia increased with the change of obesity type from non-obesity to complex obesity (all P values<0.001). Conclusion: The prevalence of cardiometabolic risk factors was still high in children and adolescents, which has become an important factor threatening the healthy growth of children and adolescents.