The Epidemiological Survey Of Primary Hypertension Of Adolescents And Related LVH In Taiyuan

Objective: To investigate the level of the blood pressure and the prevalence rate of essential arterial hypertension in adolescents in Taiyuan. To investigate the risk factors associated with primary hypertension in adolescents. To investigate the prevalence of left ventricular hypertrophy and left ventricular structure associated with primary hypertension in adolescents and the risk factors of LVMI.Method A Stratified-clustered-random sampling study of 1,749 adolescents aged 13 to 18 years in Taiyuan were used and age,height, weight , systolic blood pressure and diastolic pressure were conducted from September 2006 to January 2007,then calculate the BMI..The standard of hypertension is that SBP or DBP is greater than or equal to 95th percentile by sex and age. Undergoing further medical examination to exclude the secondary hypertension ,69 cases of essential hypertension were screened. Conducted these cases as study objects.1.Random Sampling were used to select 69 cases as control group from all the normotensive adolscents, the clinical case-control study was performed . Venous blood was taken suction to check fasting blood glucose, triglyceride and Cholesterol. And relative information about cases was filled in the unified questionnaires forms.2. Selected 69 cases with normal blood pressure with similar age, sex, height, BMI, as control group, inspection trip UCG,then calculated LVMI and RWT. 3.The data were analyzed with the software of SPSS13.0 . logistic regression analysis for 13 influence factors of essential hypertension were made.Results:1.the prevalence rate of hypertension in Taiyuan was 3.9%, 5.0% in boys and 2.1% in girls.There was no significant difference in SBP, DBP mean and the prevalence rate of hypertension between urban and rural areas. The prevalence rate of pre-Hypertension was 7.4%, with 7.9% in boys and 6.8% in girls. There was no significant difference in the prevalence rate between boys and girls.(P> 0.05).2. There was no significant difference in SBP and DBP mean between different age groups of the same sex. There was a significant difference in SBP, DBP between boys and girls.3. Single factor analysis approved that increased body mass index and hyperlipidemia are important risk factors for adolescent primary hypertension. Will systolic and diastolic blood pressure were analyzed and found that increased BMI, regular nightmares, sleep difficulty, family history of hypertension, Western-style fast food eating often, hyperlipidemia are isolated risk factors of systolic hypertension, and sleep apnea, obesity, Hyperlipidemia are risk factors of diastolic hypertension. Multivariate logistic regression analysis showed that increased BMI during adolescence essential hypertension risk factors. Risk factors of systolic hypertension were sleep difficulties, hyperlipidemia, and family history of hypertension; diastolic hypertension risk factors sleep opnea, hyperlipidemia.4. Compared with the control group, LVMI, IVST, LVPW were significantly increased in the hypertensive group, LVMI was significantly correlated with the SBP. Concentric remodeling was present in 15 of 69 (21.4%) in the study object. No patient was found with left ventricular hypertrophy.Conclusion: Obesity and hyperlipidemia are the risk factors for primary hypertension in adolescence. Sleep difficulties and often a nightmare, family history of hypertension are the isolated risk factors of systolic hypertension, sleep apnea is the risk factor of diastolic hypertension. Concentric remodeling was present in 15 of 69 (21.4%) in the study object. No patient was found with left ventricular hypertrophy.