Objective:To explore the relationship between anemia and basic growth indicators. Methods:Multi-stage stratified cluster random sampling was employed and 5 schools were selected in Jiulongpo District

Chongqing

China. Totally 6 260 school-aged children signed up for the physical examination and blood test. Valid?subjects were divided into anemia group and non-anemia group according to the hemoglobin level. Statistical analysis was used to explore the difference and correlation of anthropometric data（weight and height）and blood index

including mean corpuscular volume（MCV）

mean corpuscular hemoglobin（MCH）

mean corpuscular hemoglobin concentration（MCHC） and red blood cell distribution width（RDW） between anemia group and non-anemia group.Results:There were 1 140 anemia children in 4 730 valid subjects

the incidence rate of anemia was 24.1%. And the incidence of anemia in girls was significantly higher than that of boys’（boy:22.6%

girls:25.7%

χ2=6.1

P=0.01）. The incidence of anemia in each group（6 years

、

7 years

、

8 years

、

9 years

、

10 years

、

11 years

、

12 years

）

were 29.1%

29.1%

27.6%

23.7%

20.9%

17.4%

10.5%. The incidence of anemia was significantly different in different ages（χ2=75.8

P=0.000）. There were significant difference in growth indicators and blood routine examination indexes between the anemia group and non-anemia group（P

<

0.05）. Anemia significantly affected children’s weight and height（F=124.4

P=0.000;F =93.65

P=0.000）. Hemoglobin was significantly correlated with weight

height

body mass index

MCV

MCH

MCHC（correlation coefficients were 0.233

0.221

0.174

0.277

0.427

0.319respectively;all P = 0. 000）. Conclusion :The incidence of anemia is very high in school-aged children in Jiulongpo District of Chongqing. Anemia and age

sex

weight and height are correlated. Anemia affects school-aged children’s weight and height significantly

suggesting that high attention should by paid to anemia of school-aged children living in that area and propaganda for children and their parents should be strengthened.