为制定中国老年女性红细胞比积正常参考值的统一标准提供科学依据,收集了中国12395例健康老年女性红细胞比积正常参考值,研究了其与地理因素的关系.发现海拔高度是影响老年女性红细胞比积正常参考值最主要的因素.随着海拔高度的逐渐增大,老年女性红细胞比积正常参考值也在逐渐增大,相关性很显著(r=0.876).用多项式回归分析的方法推导出回归方程为Y=54.4+0.001OOX1-0.286X3—0.624X4+0.00400X5+1.21×10^-7X1^2+0.00200X3^2+0.0180X4^2-1.91×10^-6X5^2±3.9,由此模型如果知道了中国某地的地理因素,就可以用回归方程估算这个地区的老年女性红细胞比积正常参考值.依据老年女性红细胞比积正常参考值与地理因素的依赖关系把中国分为青藏区,西南区,西北区,东南区,华北区。东北区等6个区.
To supply a basis for uniting the reference value standard of Chinese old womenrs ESR,a research is made about relationship between the reference value of 12 395 examples of Chinese healthy old woments hematocrit and five geographical factors in Chinese 201 areas. It is found that altitude is the main factor affecting the reference value of Chinese old women's hematocrit. As the altitude increases gradually,the reference value of Chinese old women's hematocrit also increases gradually,and the corre- lation is quite obvious (r=0.876). Applying the method of mathematical regression analysis, one regression equation is given out : Y = 54.4 + 0. 001 00X1 - 0. 286X3 - 0. 624X4 + 0. 004 00X5 + 1. 21 × 10^-7 X1^2 +0.002 00X3^2 +0.018 0X4^2 - 1. 91 × 10^-5 X5^2 ±3.9. if geographical values are obtained in some areas,the reference value of Chinese old women's hematocrit of this area can be reckoned using regression equation. Furthermore,according to the similarity of the reference value of Chinese old women's hematocrit, taking the altitude as the main dividing basis and considering effects of other geographical factors and population distribution, China can be divided into six regions ; Qingzang, Southwest, Northwest, Southeast,North and Northeast region.