Objective:To better understand the condition of anemia and iron storage in premenopausal nonpregnant women and first to second trimester pregnant women in Kai County Chongqing China.Methods:A cluster sampling trial was conducted to select 236 premenopausal nonpregnant women and 127 first to second trimester pregnant women.Blood was drawn for Hb(cyanmethemo-globin assay)

SF(Enzyme-linked Immunosorbentassay) and STfR(immunoturbidimetry).Results:The prevalence rate(PR) of anemia in nonpregnant group was 32.63%

among which 98.71% was mild anemia.The PR of anemia in first to second trimester pregnant group was 42.52%

among which 87.10% was mild anemia.The PR of iron deficiency(ID) was 16.11% in nonpregnant group

while 24.41% in first to second trimester pregnant group

which showed no difference between the two groups(χ2=3.70

P>0.05).The prevalence rates of ID in first trimester group and second trimester group were 14.29% and 33.81%

respectively

showing significantly higher rate in the latter group(χ2=6.33

P<0.05).Among the anemic subjects

34.26% subjects had their SF lower than normal level

while 14.82% subjects had their STfR higher than normal value.Hb was remarkable lower in first to second trimester group than in nonpregnant group(P<0.05).Hb

SF were remarkably decreased while STfR was significantly increased in second trimester group

Compared with first trimester group(P<0.05).Conclusions:The PR of anemia was high in nonpregnant women and pregnant Women in Kai County

but the degree of anemia was mild.There are probably some other reasons to cause anemia in Kai County.With the development of pregnancy

the storage of iron tended to be lower.