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目的调查西藏阿里地区藏族人群的乙型肝炎病毒的携带率,为本地区乙型病毒性肝炎疾病的预防控制提供依据。方法抽取西藏阿里地区世居藏族人群2 749例,进行乙型肝炎病毒血清学标志物检验,对检验结果进行统计学分析。结果西藏阿里地区藏族人群的乙型肝炎病毒(HBV)携带率高达20.33%,有免疫力的人群仅占23.43%,感染率为26.12%,易感人群占50.45%。男性HBV携带率和感染率均高于女性,差异有统计学意义(P<0.05);农牧民HBV携带率和感染率均显著高于城镇居民,差异有统计学意义(P<0.05)。结论西藏阿里地区藏族人群HBV携带率明显高于全国水平,是乙型肝炎高流行地区。
Objective To investigate the prevalence of hepatitis B virus among Tibetan people in Ali area of Tibet, and to provide basis for the prevention and control of hepatitis B virus in this area. Methods A total of 2 749 Habitat Tibetan populations in Ali area of Tibet were collected for serological markers of hepatitis B virus (HBV) and the results were analyzed statistically. Results Hepatitis B virus (HBV) carrier rate was 20.33% in Tibetans in Ali area of Tibet. Only 23.43% of them were immunized, the infection rate was 26.12% and the susceptible population was 50.45%. The carrying rate and infection rate of HBV in males were higher than those in females (P <0.05). The rates and prevalence of HBV in peasants and herdsmen were significantly higher than those in urban residents (P <0.05). Conclusion The HBV carrier rate of Tibetans in Ali area in Tibet is significantly higher than that of the whole country and is a high prevalence area of hepatitis B.