房山农民膳食钙摄入量与血压的关系

Relationship between Calcium Intake and Blood Pressure in Fangshan Farmers

１９９１和１９９２年春季对北京房山农民开展钙摄入员及其他营养因素与心血管流行病学的调查，以探讨当地农民高血压高发的可能原因，资料分析显示各年龄组钙平均摄入量与收缩压和舒张压均存在着较强的简单线性相关（ｒ＝－０．８３９～－０．９７１）．运用多元逐步回归分析模型，校正年龄、性别、体重指数及其他营养素的可能混杂影响后，钙摄入量依然与收缩压和舒张压有着显著性的负关联（β＝－０．００９９；β＝－０．００４９）。本结果支持膳食钙摄入量与人体血压水平呈负相关的观点，并提示摄钙量不足可能是潜在的高血压危险因素之一。

The study was carried out in 1991 to 1992 to evaluate the relationship between blood pressure and dietary calcium intake in Fangshan, a suburb of Beijing, China,in order to explain the high prevalence of hypertension in Fangshan farmers.Calcium intake correlated negatively with blood pressure in univariate analyses (r=-0.839,-0.971). After adjusting age,sex, body mass index and other factors on blood pressure, the inverse relation of calcium intake with both systolic and diastolic blood pressure persisted in multivariate analyses (β=0.0099;β=-0.0049).The results of the present study support the idea that calcium intake is inversely associated with blood pressure and suggest that inadequate intake of calcium could be one of the potential risks of hypertension.