Normal reference value of hemoglobin of middleaged women and altitude.
OBJECTIVE
In order to supply a scientific basis for uniting the normal reference value standard of hemoglobin of Chinese middlescent women.


METHODS
A research is made about the relationship between the normal reference value of 25,917 examples of hemoglobin of middlescent women and altitude in 268 areas in China, the normal reference values of hemoglobin of middlescent women are determined by the hemoglobincyanide method.


RESULTS
The correlation between the normal reference value of hemoglobin of middlescent women and altitude is quite significant (r = 0.827). By using the method of univariate linear regression analysis, one regression equation is inferred.


CONCLUSIONS
If the altitude values are obtained in some areas, the normal reference value of hemoglobin of middlescent women of this area can be reckoned by using the regression equation. Furthermore, depending on the altitude, China can be divided into three districts: Qingzang District, Central District, and Eastern District.
Miao
Ge
G
Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi, China. gemiao2@snnu.edu.cn
Xinping
Liu
L
Haiyan
Fu
F
Zhilun
Wang
W
Yanfang
Zhang
Z
Jian
Zhang
Z
Yanfei
Xiao
X
Qian
Liu
L
D000531:Altitude; D002681:China; D005260:Female; D006452:Hemoglobinometry / Q000379:methods; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D016014:Linear Models; D008875:Middle Aged; D012016:Reference Values; D012044:Regression Analysis
D006454:Hemoglobins