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[目的]了解外籍华裔留守儿童对乙型肝炎病毒(HBV)的免疫状况及影响因素,为采取有效措施提供依据。[方法]调查广州市花都区部分外籍华裔留守儿童HBV血清学指标、乙肝疫苗接种情况及影响因素。[结果]本次调查人群为2002年前后出生者,乙肝表面抗体(抗-HBs)检出率类似,均低于花都区和广东省的一般儿童;抗-HBs检出率有地区差异。三代以内旁系血亲为抚养人的抗-HBs检出率、乙肝知识知晓率较高。人群的疫苗接种率不详,补种率23.9%。[结论]外籍华裔留守儿童对HBV存在较多免疫空白,人群自身特点、抚养人自身原因、居住地经济状况及医疗服务等为可能影响因素,其免疫规划管理应受重视。
[Objective] To understand the immune status and influencing factors of hepatitis B virus (HBV) left behind children of Chinese ethnicity in China and provide basis for effective measures. [Methods] To investigate HBV serology, hepatitis B vaccination status and influential factors in some left-behind children of ethnic Chinese in Huadu District of Guangzhou City. [Results] The survey population was born before and after 2002, the detection rate of HBsAg (anti-HBs) was similar, which were lower than those of general children in Huadu District and Guangdong Province. There were regional differences in the detection rate of anti-HBs. Within three generations of paternal blood relatives for the raising of anti-HBs detection rate, higher awareness of hepatitis B knowledge. The vaccination rate of the population is unknown, replanting rate of 23.9%. [Conclusion] The left-behind children of Chinese ethnicity in China may have more immunity to HBV, the characteristics of the population themselves, the causes of their dependents, the economic status of their residence and the medical services may be the possible influencing factors. Therefore, the immunization planning management should be taken seriously.