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膳食纤维摄入对原发性高血压患者血压控制的预测价值

Value of dietary fiber intake in predicting blood pressure control of patients with essential hypertension

    摘要
  • 摘要:
    目的  探讨膳食纤维摄入对高血压人群血压控制的预测作用。
    方法  采用前瞻性观察性研究设计, 收集患者3 d饮食日记以获得膳食纤维摄入量; 跟踪至3个月时，记录24 h动态血压，分析获得平均收缩压和平均舒张压。采用受试者工作特征(ROC)曲线评价膳食纤维摄入对血压控制的预测作用。
    结果  获得166例患者的完整膳食营养摄入情况，其中获得148例患者的血压资料。回归分析显示，膳食纤维摄入对收缩压(OR=0.897, 95%CI: 0.839~0.960)有积极影响，且对收缩压有较好的预测作用曲线下面积(AUC)=0.715, 灵敏度为60.0%, 特异度为76.9%。膳食纤维摄入并未对舒张压产生积极的影响。
    结论  膳食纤维摄入对高血压人群的收缩压控制有较好的预测作用，但未能有效预测舒张压的控制情况。

     

    Abstract:
    Objective  To investigate the value of dietary fiber intake in predicting blood pressure control in patients with hypertension.
    Methods  A prospective observational study design was used to collect patients' 3-day dietary diaries for amount of dietary fiber intake; after tracking for 3 months, 24-hour dynamic blood pressure was recorded and analyzed to obtain the average systolic and diastolic blood pressures. The receiver operating characteristic (ROC) curve was used to evaluate the predictive effect of dietary fiber intake on blood pressure control.
    Results  Complete dietary nutrient intake of 166 cases was obtained, of which 148 cases had blood pressure data. Regression analysis showed that dietary fiber intake had a positive effect on systolic blood pressure (OR=0.897, 95%CI, 0.839 to 0.960), and also had a good predictive effect on systolic blood pressure area under the curve (AUC) was 0.715, sensitivity was 60.0%, and specificity was 76.9%. Dietary fiber intake did not have a positive effect on diastolic blood pressure.
    Conclusion  Dietary fiber intake has a good predictive effect on the control of systolic blood pressure in hypertension patients, but it fails to effectively predict the control of diastolic blood pressure.

     

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