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通过收集88个单位测定7 815例成年人血浆内皮素(ET)含量参考值,应用SPSS19.0统计软件,运用相关分析和回归分析的方法,研究与7项地理因素指标的关系,以为制定中国成年人血浆内皮素(ET)含量参考值的统一标准提供科学依据.结果发现成年人血浆内皮素(ET)含量参考值与地理因素之间有显著的相关关系(F=2.232,P=0.041).用逐步回归分析的方法推导出了一个回归方程:Y=33.422+0.008X1-0.001X2-0.005X4+0.004X5+0.073X6+3.720X7±0.988.在以上回归方程中,Y是成年人血浆内皮素(ET)含量参考值(pg/mL),X1是海拔高度(m),X2是年日照时数(h),X4是年平均相对湿度(%),X5是年降水量(mm),X6是气温年较差(℃),X7是年平均风速(m/s);0.988是剩余标准差的值.如果知道了中国某地的地理因素,就可以用回归方程计算这个地区的成年人血浆内皮素(ET)含量参考值.依据成年人血浆内皮素(ET)含量参考值与地理因素的依赖关系,把中国分为8个区.
By collecting 88 units, the reference value of plasma endothelin (ET) level in 7 815 adults was analyzed. Using SPSS19.0 statistical software, correlation analysis and regression analysis were used to study the relationship with 7 geographic factors. The results showed that there was a significant correlation between the reference value of plasma endothelin (ET) content and geographical factors in adults (F = 2.232, P = 0.041) A regression equation was derived using stepwise regression analysis: Y = 33.422 + 0.008X1-0.001X2-0.005X4 + 0.004X5 + 0.073X6 + 3.720X7 ± 0.988 In the above regression equation, Y is the plasma endothelium of adult (Pg / mL), X1 is the altitude (m), X2 is the annual sunshine hours (h), X4 is the annual average relative humidity (%), X5 is the annual precipitation (mm) X6 is the annual temperature difference (℃), X7 is the annual average wind speed (m / s); 0.988 is the residual standard deviation value. If you know the geographical factors of a place in China, you can use the regression equation to calculate the adults in this area Reference value of plasma endothelin (ET) .According to the reference value of plasma endothelin (ET) content in adults and its dependence on geographical factors , Divide China into 8 districts.