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本文报告海南岛陵水县苗族居住的两个自然村苗族居民171人地中海贫血(以下简称地贫)发病的调查结果。发现HbA_2增高在3.5％以上者49例,占受检人数29％。其中有12例伴有HbF增高,占HbA_2增高人数25％。HbH病6例。占受检人数3.5％,仅有HbF增高者6例,地贫类型是β~+杂合子居多数,少数HbH病。也可能存在α地_1,杂合子,α地_2杂合子及纯合子,α-地贫基因和β地贫基因结合体的杂合子等。两村是人口少,地贫发生率高和类型较多的地区。
This paper reports the findings of a survey of the incidence of thalassemia (hereinafter referred to as thalassemia) in 171 Miao residents living in two natural villages in Miao, Lingshui County, Hainan Island. Found HbA_2 increase in 3.5% or more in 49 cases, 29% of the number of subjects. Among them, 12 cases were accompanied by an increase of HbF, accounting for 25% of HbA 2 increase. HbH disease in 6 cases. Accounting for 3.5% of the number of subjects, only HbF increased in 6 cases, thalassemia type is β ~ + heterozygous majority, a small number of HbH disease. Heterozygote of α-1, heterozygote, α-2 heterozygote and homozygote, α-thalassemia gene and β thalassex gene combination may also exist. The two villages are areas with a small population, high incidence of thalamia and more types.