Studies show that both low physical activity (PA) and adiposity are associated with a higher risk of hypertension. However, the relationship between PA and blood pressure in adolescents is controversial and other studies have reported that no association was observed. Of particular interest is the evaluation of whether the association between PA and high blood pressure is independent of adiposity. A sample of 3764 Brazilian adolescents who attend high schools was selected using random cluster sampling. Data were collected using the Global School-based Student Health Survey, anthropometry, and blood pressure readings. The prevalence of high blood pressure was 14.6% (95% Confidence Interval (CI) 13.5-15.7), higher amongst males (20.0%; 95%CI 18.0-22.1) compared with females (10.9%; 95%CI 9.7-12.3). Sixty-six per cent of the adolescents were reported to be insufficiently active. The prevalence of high blood pressure was 12.8% (95%CI 11.0-14.7) amongst active compared with 15.4% (95%CI 14.0-16.9) amongst insufficiently active adolescents. The association between PA and high blood pressure was observed only amongst females after adjusting for waist circumference (odds ratio (OR) 1.67; 95%CI 1.21-2.31) and body mass index (OR 1.71; 95%CI 1.23-2.37). Notwithstanding levels of adiposity, higher PA levels are associated with a lower prevalence of high blood pressure amongst females, although not amongst males.

译文

研究表明,低体力活动(PA)和肥胖都与高血压风险较高相关。但是,青少年PA与血压之间的关系存在争议,其他研究也报告没有相关性。特别感兴趣的是评估PA与高血压之间的关联是否独立于肥胖。使用随机整群抽样选择了3764名就读高中的巴西青少年。使用基于全球学校的学生健康调查,人体测量学和血压读数收集数据。高血压患病率为14.6%(95%置信区间(CI)13.5-15.7),其中男性(20.0%; 95%CI 18.0-22.1)高于女性(10.9%; 95%CI 9.7-12.3) 。据报告,百分之六十六的青少年缺乏足够的活动。活跃的高血压患病率为12.8%(95%CI 11.0-14.7),而活跃度不足的青少年则为15.4%(95%CI 14.0-16.9)。仅在调整腰围(优势比(OR)1.67; 95%CI 1.21-2.31)和体重指数(OR 1.71; 95%CI 1.23-2.37)后,才在女性中观察到PA与高血压之间的关联。尽管有脂肪水平,但PA水平较高与女性中高血压的患病率较低相关,而男性之间则不然。

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