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[Epidemiological study on thalassemia among the children of 0 - 7 years old among the six ethnic groups in Xishuangbanna and Dehong of Yunnan province].
Zhonghua Liu Xing Bing Xue Za Zhi ; 32(4): 352-6, 2011 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-21569665
ABSTRACT

OBJECTIVE:

To investigate the prevalence rate of thalassemia among children of 0 - 7 years old, from six ethnic groups in Xishuangbanna and Dehong, Yunnan province.

METHODS:

4973 blood samples from children under 7 years old were automatically undergone blood cell count, red cell osmotic fragility and hemoglobin electrophoresis testings.

RESULTS:

The incidence rates of thalassaemia, ß-thalassemia was 37.4%, and α-thalassaemia were 22.6% and 14.7% respectively. The thalassaemia incidence rates were significantly different among age groups but not in gender. The incidence of α-thalassaemia was decreasing along with the increase of age, while the incidence of ß-thalassaemia was increasing along with the increase of age. Xishuangbanna had the higher incidence than in Dehong and the differences were significant between counties, The incidence of thalassemia of Mengla ranked the first (52.2%) in Xishuangbanna, The differences between different regions and different nationalities were significant, with ß-thalassemia of Achang ranked the first (40.6%), The incidence of α-thalassemia among Han ranked the first as 45.5% while α-thalassaemia and ß-thalassemia were different in regions. α-thalassaemia and ß-thalassemia were significantly different between different ethnic people in the same regions. Multiple factor analysis showed that region seemed to be a risk factor and the mother's ethnicity was a protective factor and dependent variable on thalassaemia.

CONCLUSION:

The incidence of thalassaemia in Yunnan Xishuangbanna and Dehong was high among children under the age of 7 and were related to ethnic and regional differences in the areas. Specific genes were proliferated along with the extension of time. Our data provided valuable information on prevention and genetic studies on thalassaemia in the minorities of Xishuangbanna and Dehong in Yunnan province.
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Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Talassemia Aspecto clínico: Etiologia Limite: Criança / Criança, pré-escolar / Feminino / Humanos / Lactente / Masculino País/Região como assunto: Ásia Idioma: Chinês Revista: Zhonghua Liu Xing Bing Xue Za Zhi Ano de publicação: 2011 Tipo de documento: Artigo País de afiliação: China