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  • Title: Prevalence of hypertension and pre-hypertension in 13-17 year old adolescents living in Mthatha - South Africa: a cross-sectional study.
    Author: Nkeh-Chungag BN, Sekokotla AM, Sewani-Rusike C, Namugowa A, Iputo JE.
    Journal: Cent Eur J Public Health; 2015 Mar; 23(1):59-64. PubMed ID: 26036100.
    Abstract:
    BACKGROUND: Hypertension is one of the most common risk factors for cardiovascular diseases (CVDs), yet not much effort is being invested in early diagnosis and control of the condition in susceptible children. The aim of this study was to,investigate the prevalence of pre-hypertension and hypertension in peri-urban school-attending adolescents and explore the relationship between blood pressure and selected anthropometric measurements. METHODS: A cross-sectional study of adolescents aged 13-17 years was performed. Data on height, weight, waist and hip circumferences as well as blood pressure were collected from all participants. Body mass index (BMI) and blood pressure percentiles were calculated. Results: The overall prevalence of obesity was 20.4% while the prevalence of hypertension and pre-hypertension was 21.2% and 12.3%, respectively. The prevalence of hypertension and pre-hypertension in males was 22.0% and 13.6% compared to 20.9% and 16.5% in females, respectively. Both conditions were associated with higher BMI in both girls and boys. While mean systolic blood pressure (SBP) was positively associated with higher BMI and waist circumference (WC) in males and females, it correlated negatively with hip circumference (HC) in males. On the other hand, mean diastolic blood pressure (DBP) correlated better with HC in males but only weakly in females. CONCLUSION: Adolescent learners in Mthatha had a high prevalence of hypertension and pre-hypertension which were associated with overweight and obesity. Results highlight the urgent need for screening in view of early detection and implementation of intervention strategies to prevent a high incidence of CVDs in this country.
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