Objective: In order to understand hepatitis B infection and prevalence in the region. Methods: The cases with positive hepatitis B surface antigen in the laboratory were collected and analyzed, and the prevalence of hepatitis B was also analyzed. Results: In these cases, the rates of big 3 and Small 3 this world were 20. 27% and 62. 26% , and they accounted for 82. 53% of the total. In five different age groups (0 ~ 20, 21 ~ 30, 31 ~ 40, 41 ~ 60, 61 years old and above), Big 3 and Small 3 this world accoun-ted for 51. 78% 、35. 97% , 41. 34% 、 41. 21% , 23. 87% 、 57. 70% , 14. 00% 、 67. 53% , 6. 64% and 78. 91% . Conclusions: Big 3 and small 3 this world are the main types of hepatitis B in the hepatitis B virus carriers. In the 0 ~ 20 age group, Big 3 is the main type of hepatitis B. In 21 ~ 30 age group, the rates of big 3 and small 3 are at the same level; however, in 31 years old and above age groups, small 3 this world is the main type of hepatitis B. The year is older, the small 3 rate is bigger.%目的：：了解本地区人群中乙型肝炎病毒的感染及流行情况。方法：收集实验室乙肝表面抗原阳性患者的乙肝5项检测结果,从而分析乙肝病毒的携带患者及流行情况。结果：乙肝表面抗原( HbsAg)呈阳性患者中,大三阳占总数的20.27%。小三阳占总数的62.26%。两者共占总数的82.53%。不同年龄患者分组(0~20,21~30,31~40,41~60,60岁以上)大三阳和小三阳患者占本年龄组的比率分别是51.78%、35.97%,41.34%、41.21%,23.87%、57.70%,14.00%、67.53%,6.64%和78.91% 。结论：乙型肝炎病毒感染患者的乙肝5项结果类型以大三阳和小三阳为主,其中 0~20岁年龄组患者以大三阳为主,21~30岁年龄组患者中大三阳和小三阳基本一致,31岁以上组患者以小三阳为主,即呈随年龄增加而小三阳比率增高趋势。
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