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) 和肥胖都与高血压的高风险相关。然而,PA与青少年血压之间的关系存在争议,其他研究报告未观察到关联。特别令人感兴趣的是评估PA与高血压之间的关联是否独立于肥胖。采用随机整群抽样的方法,选取了3764名就读高中的巴西青少年样本。数据是使用全球学校学生健康调查,人体测量学和血压读数收集的。高血压的患病率为14.6% (95% 置信区间 (CI) 13.5-15.7),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,66% 的青少年活动不足。在活跃的青少年中,高血压的患病率12.8% (95% CI 11.0-14.7),而在不活跃的青少年中,高血压的患病率为15.4% (95% CI 14.0-16.9)。仅在调整腰围 (比值比 (OR) 1.67; 95% CI 1.21-2.31) 和体重指数 (OR 1.71; 95% CI 1.23-2.37) 后,在女性中观察到PA与高血压之间的关联。尽管肥胖程度较高,但女性中PA水平较高与高血压患病率较低有关,尽管男性中并非如此。

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