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目的了解绵阳市乙型肝炎病毒(简称乙肝病毒)感染流行现状及分布特点,分析影响人群感染乙肝病毒的因素,为开展有针对性的乙型肝炎(简称乙肝)防治、建立适合西部地区二级城市乡镇/社区乙肝防治模式提供理论依据。方法对来自“十二·五”绵阳重大传染病综合防治示范研究中强化干预区的体检数据进行统计描述,并选用两水平logistic回归模型分析影响人群感染乙肝病毒的因素。结果绵阳市一般人群的HBsAg携带率粗率为4.91%,HBsAg携带率在个体层面会随着个体年龄的增加而升高。乙肝病毒感染在乡镇水平存在聚集效应,其影响因素中丘陵地形、公共卫生支出100万元及以上属于保护因素;个人行为中,无外出3个月的经历、无输血史、无乙肝家族史、饮酒量小于20g/d属于保护因素;年龄、男性、非医务工作者、无乙肝疫苗接种史、饮酒量大于80g/天均属于危险因素。结论绵阳市属于中地方性流行地区,但其下属仍有个别乡镇为高地方性流行地区;乙肝病毒感染存在地区聚集,传统的危险行为因素仍是影响个体感染乙肝病毒的关键。
Objective To understand the prevalence and distribution of Hepatitis B virus (HBV) in Mianyang City and to analyze the influencing factors of hepatitis B virus (HBV) infection in population. To develop targeted Hepatitis B (HBV) prevention and control, Provide theoretical basis for prevention and control of hepatitis B in urban townships / communities. Methods The physical examination data from intensive intervention area of “12 · 5 · Mianyang” comprehensive prevention and treatment of major infectious diseases were statistically described, and the two-level logistic regression model was used to analyze the factors influencing the population’s hepatitis B virus infection. Results The prevalence of HBsAg in the general population in Mianyang city was 4.91%. The carrier rate of HBsAg increased with the increase of individuals’ age at the individual level. Hepatitis B virus infection in the township level aggregation effect, the impact of factors in the hilly terrain, public health expenditure of 1 million yuan and above are protective factors; personal behavior, no out 3 months of experience, no blood transfusion history, no history of hepatitis B, Alcohol consumption is less than 20g / d is a protective factor; age, men, non-medical workers, no hepatitis B vaccination history, alcohol consumption greater than 80g / day are risk factors. Conclusion Mianyang City belongs to endemic endemic areas, but some townships are still endemic in endemic areas of Mianyang City. Hepatitis B virus is endemic in regions. The traditional risk factors are still the key factors affecting individuals infected with hepatitis B virus.