Relationship between sleep duration and blood pressure among children and adolescents in Lanzhou

Objective To determine the association between sleep duration and blood pressure among children and adolescents aged 7-18 in Lanzhou,and to provide reference for prevention of high blood pressure of adolescents.Methods A total of 4 200 children and adolescents were achieved by a stratified multistage sampling method.The data of blood pressure,height,weight and sleep duration were gathered by trained physicians from all subjects.The relationship between sleep duration and blood pressure was analyzed by multiple linear regression analysis.Results The systolic blood pressure and diastolic blood pressure of boys were higher than those of girls,the difference was statistically significantly(t =11.115,4.402,P<0.01).In the three age group of 7-12,13-15 and 16-18,the systolic blood pressure and diastolic blood pressure of whose sleep duration<8 h were higher than those of sleep duration≥8 h in both sexes,and the difference was of statistical significance(P<0.01).According to the results of multiple linear regression analysis,there was a relationship between sleep duration and blood pressure (P<0.05).Conclusion The sleep duration of children and adolescents in Lanzhou is related to blood pressure.Ensuring students' sleep duration may help to prevent children and adolescents' hypertension.