title: Thalassemia and hemoglobinopathies rather than iron deficiency are major causes of pregnancy-related anemia in northeast Thailand.
abstract: A cross-sectional prevalence study of anemia was undertaken on 412 pregnant women in northeast Thailand during January 2003 to May 2004. With standardized diagnostic protocols and the CDC criteria of anemia [hemoglobin (Hb) < 11 g/dl at < or = 12 weeks of gestation and Hb < 10.5 g/dl at < or = 20 weeks of gestation], 71 (17.2%) subjects were anemic. Of these, 42 (59.2%) subjects had thalassemia, 5 (7.0%) had iron deficiency, 18 (25.4%) had combined thalassemia and iron deficiency and 6 (8.5%) had no thalassemia nor iron deficiency. Adjusted logistic regression analyses indicated that various thalassemia genotypes were significantly related to anemia, while homozygous Hb E had the highest risk with an odds ratio (OR) of 44.8 (95% CI 12.6-159.7). In comparison, iron deficiency demonstrated a much lower risk with OR of 3.1 (95% CI 1.4-6.8). This finding suggests that the contribution of iron deficiency to pregnancy associated anemia in this region is low.
authors.affiliation: The Graduate School of Khon Kaen University, Khon Kaen, Thailand.
authors.forename: Kanokwan
authors.initials: K
authors.lastname: Sanchaisuriya
authors.forename: Supan
authors.initials: S
authors.lastname: Fucharoen
authors.forename: Thawalwong
authors.initials: T
authors.lastname: Ratanasiri
authors.forename: Pattara
authors.initials: P
authors.lastname: Sanchaisuriya
authors.forename: Goonnapa
authors.initials: G
authors.lastname: Fucharoen
authors.forename: Ekkahart
authors.initials: E
authors.lastname: Dietz
authors.forename: Frank P
authors.initials: FP
authors.lastname: Schelp
mesh_terms: D000328:Adult; D000740:Anemia / Q000209:etiology* / Q000235:genetics; D003430:Cross-Sectional Studies; D005260:Female; D005838:Genotype; D006446:Hemoglobin E / Q000235:genetics; D006453:Hemoglobinopathies / Q000150:complications* / Q000235:genetics; D006801:Humans; D000090463:Iron Deficiencies; D016017:Odds Ratio; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000209:etiology*; D015995:Prevalence; D013785:Thailand / Q000453:epidemiology; D013789:Thalassemia / Q000150:complications* / Q000235:genetics
chemical_list: D006446:Hemoglobin E