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-  2017 

住院新生儿首针乙肝疫苗后抗体滴度情况及影响因素分析 Analysis on the HBsAb Titers and Its Determinants After the First Immunization of Hepatitis B Vaccine Among Hospitalized Neonates

Keywords: 新生儿,乙型肝炎疫苗,HBsAb滴度,影响因素

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Abstract:

目的:调查住院新生儿接种首针重组酵母乙型肝炎(乙肝)疫苗后HBsAb滴度情况,并探讨其相关影响因素。方法:以2012-2014年我院的1 002例新生儿为研究对象,在出生后24h内接种首针乙肝疫苗。采用化学发光微粒子免疫分析法检测HBsAb滴度,并通过问卷调查收集相关资料。通过单因素方差分析及有序多分类Logistic回归模型分析新生儿HBsAb滴度的影响因素。结果:新生儿首针乙肝疫苗免疫后,HBsAb滴度<10mIU/ml者397例,10-99mIU/ml者294例,100-999mIU/ml者252例,≥1 000mIU/ml者59例;低无抗体率为67.0%,其中无抗体率为39.6%,低抗体率为29.4%。经综合考虑单因素分析和有序多分类Logistic回归分析,胎龄、母亲HBsAb滴度和母亲HBsAg这3个因素是新生儿HBsAb滴度的影响因素,其低无抗体的OR值分别为1.179(胎龄<32周)、8.906(母亲HBsAb<10mIU/ml)、4.203(母亲HBsAb 10-99mIU/ml)和3.134(母亲HBsAg阳性)。结论:胎龄<32周、母亲HBsAb<100mIU/ml和母亲HBsAg阳性新生儿首针乙肝疫苗后HBsAb滴度较低,应加强HBsAb滴度的监测

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