Itoh K, Kawasaki T, Uezono K
Department of Food and Nutrition, Nakamura Gakuen University.
Nihon Koshu Eisei Zasshi. 1995 Feb;42(2):95-103.
Dietary intake of sodium (Na), potassium (K), calcium (Ca) and magnesium (Mg) from measured food intake, and urinary Na and K excretions estimated by analyzing the second voided morning urine were analyzed for correlations to each other and to blood pressure in 57 males and 90 females (average age of 53 years). Significant positive correlations were found between systolic blood pressure and urinary Na/K ratio, dietary Ca/Mg ratio and body mass index after adjustment for age. Diastolic blood pressure was also positively correlated to these variables. By multiple regression analysis, the coefficients for age and urinary Na/K and dietary Ca/Mg ratios were all statistically significantly associated with systolic and diastolic blood pressure. Dietary Ca/Mg ratio was negatively correlated with rice, beans and fish intake, and urinary K excretion positively correlated with fish and green vegetable intakes by the same analysis. These data suggest that the dietary Ca/Mg ratio--but not magnesium singly--as well as aging and urinary Na/K ratio were among important factors related to blood pressure.
对57名男性和90名女性（平均年龄53岁）通过测量食物摄入量得出的钠（Na）、钾（K）、钙（Ca）和镁（Mg）的膳食摄入量，以及通过分析早晨第二次晨尿估算的尿钠和钾排泄量进行了分析，以研究它们之间以及与血压的相关性。在调整年龄后，收缩压与尿钠/钾比值、膳食钙/镁比值和体重指数之间存在显著正相关。舒张压也与这些变量呈正相关。通过多元回归分析，年龄、尿钠/钾比值和膳食钙/镁比值的系数均与收缩压和舒张压有统计学显著关联。通过相同分析，膳食钙/镁比值与大米、豆类和鱼类摄入量呈负相关，尿钾排泄量与鱼类和绿色蔬菜摄入量呈正相关。这些数据表明，膳食钙/镁比值（而非单独的镁）以及衰老和尿钠/钾比值是与血压相关的重要因素。
