Dynamic analysis of blood pressure among Guangxi Zhuang students from 1991 to 2014

Objective To analyze dynamic changes of the blood pressure among Guangxi Zhuang students,and to provide scientific basis for prevention and control of hypertension in children and adolescents.Methods The data of blood pressure,height,weight and other data of Zhuang students aged 7-18 years in Guangxi were collected in the National Students Physical Fitness and Health Survey for 6 times during 1991-2014 years,and Excel 2007 and SPSS 19.0 were used for statistical analysis.Results During the 24 years,the systolic pressure of the Zhuang students in Guangxi showed a downward trend,with an average decrease of 3.9 mmHg;diastolic pressure showed an upward trend,with an average increase of 6.9 mmHg,amplitude greater than systolic pressure;pulse pressure showed a downward trend,with an average decrease of 10.8 mmHg.The blood pressure of students increased gradually with age.After puberty,the growth rate of male and female blood pressure increased significantly.From 1991 to 2014,students' body mass index (BMI) turned a upward tendency(F=4.841,P<0.01).Conclusion Blood pressure in Guangxi Zhuang students increased gradually in recent years.We should do well in health education,advocate healthy and civilized life style,and prevent the occurrence of hypertension.