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  • Title: Prevalence of thalassemia in pregnant women at Maharaj Nakorn Chiang Mai Hospital.
    Author: Wanapirak C, Muninthorn W, Sanguansermsri T, Dhananjayanonda P, Tongsong T.
    Journal: J Med Assoc Thai; 2004 Dec; 87(12):1415-8. PubMed ID: 15822533.
    Abstract:
    OBJECTIVE: To determine the prevalence of thalassemia including alpha-thalassemia-1 trait (SEA type), beta-thalassemia trait, hemoglobin E (HbE) trait, homozygous HbE, the combination of alpha-thalassemia-1 (SEA type) and beta-thalassemia trait, alpha-thalassemia-1 (SEA type) and hemoglobin E trait, and beta-thalassemia hemoglobin E disease in pregnant women. METHOD: A cross-sectional descriptive study was conducted on pregnant women who attended the antenatal clinic at Maharaj Nakorn Chiang Mai Hospital, from 1 August to 31 October 2001. All subjects had blood taken for diagnosis of thalassemia trait or diseases, based on quantitative electrophoresis, and PCR (polymerase chain reaction) technique RESULTS: 516 pregnant women were recruited 81.0% resided in Chiang Mai province, and the remainder were in other northern provinces of Thailand. The mean (+/-SD) age was 27.7+/-6.3 years old. 5.6% of cases had anemia. Overall prevalence of thalassemia trait was 25.4% which were classified as follows: alpha-thalassemia-1 (SEA type) trait 6.6%, beta-thalassemia trait 3.7%, hemoglobin E trait 11.6%, homozygous hemoglobin E 0.8%, the combination of alpha-thalassemia-1 (SEA type) and beta-thalassemia trait 1.2% and the combination of alpha-thalassemia-1 (SEA type) and hemoglobin E trait 1.5%. Additionally, the authors also found beta-thalassemia hemoglobin/E disease 0.2%. CONCLUSION: The prevalence of thalassemia carriers among pregnant women at Maharaj Nakorn Chiang Mai hospital was high, indicating the necessity of a screening thalassemia program aimed at prevention and control of this disease.
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