中国中老年女性红细胞压积参考值与地理因素的分析

Multivariate Regression Analysis of the Relation Between Hematocrit Reference Value in Chinese Middle-and Old-age Women and Geographical Factors

为制定中国中老年女性红细胞压积参考值的统一标准提供科学依据，收集了中国各地用温氏法测定的健康中老年女性红细胞压积参考值，并对其与地理因素的关系进行了研究，发现海拔高度是影响中老年女性红细胞压积参考值最主要的因素，随着海拔高度的逐渐增大，中老年女性红细胞压积参考值也在逐渐的增大，两者间存在相关关系（Ｐ＜０．０１）。用多元回归分析的方法推导出了一个回归方程。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中老年女性红细胞压积参考值。依据中老年女性红细胞压积参考值与地理图素的关系把中国分为青藏区、西南区、西北区、东南区、华北区。

In order to supply an evidence for unifying the standard of hematocrit reference value (HRV) in Chinese middle- and old-age women (CMOW), HRV in CMOW all over the country was determined by Wintrobe Laws. The relation between HRV in CMOW and geographical factors was also studied. It was found that elevation was a main factor affecting HRV in CMOW ,and HRV in CMOW increased with the elevation, there being a positive correlation (P< 0.01 ).Thus a regression equation was deduced by multivariate regression analysis. If a geographical value in some area is obtained, HRV in CMOW could be calculated. Six regions can be divided in China according to the relation between HRV in CMOW and geographical factors,they are: Qingzang, southwest, northwest,southeast, north and northeast regions.