Performance of four simplified screening methods of elevated blood pressure among children and adolescents
Objective To evaluate the performance of four simplified screening methods of elevated blood pressure commonly used among children and adolescents according to Chinese guidelines for prevention and treatment of hypertension(revised in 2018),so as to provide a reference for the early detection of the elevated blood pressure among children and adolescents.Methods Stratified cluster random sampling method was used to monitor the physical fitness of 5 211 children and adolescents in a city of Shanxi Province from October to November 2021.Chinese guidelines for prevention and treatment of hypertension was considered as gold standard,and sensitivity,specificity,area under the curve(AUC)and Kappa value were calculated to evaluate the screening effectiveness of formula method,height-specific method,age group-specific method,sex and age-specific method for screening ele-vated blood pressure.Results The detection rates of elevated blood pressure among children and adolescents screened by gold standard,formula method,height-specific method,age group-specific method,sex and age-specific method were 21.9％,24.0％,21.1％,24.5％and 20.2％,respectively.There was no significant difference between prevalence of elevated blood pressure screened by formula method,sex and age-specific method and gold standard(x2=1.21,1.41,P＞0.05),whereas height-specific method and age group-specific method had significant differences with gold standard(x2=20.39,67.09,P＜0.05).AUC was the largest for height-specific method[0.94(95％CI=0.93-0.95)],and the smallest for age group-specific method[0.87(95％CI=0.86-0.88)].The Kappa values of height-specific method(0.89)and sex and age-specific method(0.89)were both greater than 0.85,which were more consistent with the screening effectiveness of gold standard.When comparing by sex,age and body mass in-dex(BMI),the screening effectivenesses were consistent with the overall in boys,6-11 years and normal body weight groups,while the screening effectivenesses were different in girls,12-17 years,overweight and obese groups.The AUC(0.87),Kappa val-ue(0.71)and sensitivity(82.33％)of age group-specific method were the lowest and the screening effectiveness was the worst.Conclusion Height-specific method is more effective and can be used for early identification and self-detection of blood pressure abnormalities among children and adolescents.
Blood pressureReference standardsArea under curveChildAdolescent
NETL
NSTL
万方数据
