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  • Title: Anemia prevalence among pregnant women and birth weight in five areas in China.
    Author: Ma AG, Schouten E, Wang Y, Xu RX, Zheng MC, Li Y, Sun YY, Wang QZ.
    Journal: Med Princ Pract; 2009; 18(5):368-72. PubMed ID: 19648759.
    Abstract:
    OBJECTIVES: To investigate the current prevalence of anemia among pregnant women in different areas of China and the association with birth weight and educational level. METHODS: A total of 6,413 women aged 24-37 in the third trimester of pregnancy from five areas were randomly selected from all gravidas who gave birth in the hospitals from 1999 to 2003. Blood hemoglobin concentration (Hb) was measured by the cyanomethemoglobin method; Hb <110 g/l was considered as anemia. RESULTS: The overall prevalence of anemia was 58.6%, ranging from 48.1 to 70.5% in the five areas. There was a significant difference in the prevalence of anemia between women who have mental jobs and those who have physical jobs (52.3 vs. 61.1%, p < 0.01). The prevalence of anemia depended on the level of education: with 52.9, 62.4 and 66.5%, for college, secondary school and primary education, respectively, and the difference was statistically significant (p = 0.005). Results showed that higher birth weight was associated with Hb concentrations ranging from 90 to 140 g/l, whereas lower birth weight occurred below 80 g/l and above 140 g/l Hb. CONCLUSIONS: The prevalence of anemia in Chinese pregnant women was high both in rural areas and towns. Area of residence, education level and type of job influenced the prevalence of anemia. Low maternal Hb concentrations influenced birth weight.
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