兰州市中小学生睡眠时间和血压的关系

探讨兰州市7~18岁中小学生睡眠时间和血压的关系,为预防青少年高血压提供参考.方法 采用分层随机整群抽样的方法,选取兰州市4 200名中小学生进行身高、体重和血压测量,并调查睡眠时间.采用t检验和多元线性回归分析睡眠时间和血压之间的关系.结果 男生收缩压和舒张压均高于女生,差异有统计学意义(t值分别为11.115,4.402,P值均<0.01);在7~12,13~15,16~18岁3个年龄组中,无论男女,睡眠时间充足学生的收缩压和舒张压均低于睡眠时间不足的学生,差异均有统计学意义(P值均<0.01).在调整了身高、体重、体质量指数等因素的多元线性回归模型中,中小学生的睡眠时间与收缩压、舒张压的关联均有统计学意义(JP值均<0.05).结论 兰州市中小学生睡眠时间和血压之间存在关联性,保证学生睡眠时间可能有助于儿童青少年高血压的预防.

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.