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防城港市人群ＨＢｓＡｇ携带率与广西人群携带率一致 ,均为１３．４ %［１］。为了解我市在校学生的ＨＢｓＡｇ携带状况 ,于１９９７年９～１０月对我市６２０１名中、小学生进行调查。１对象和方法１．１调查对象以整群抽样方法选择市区２所中学、２所小学３７６１名及郊区１?
The population carrying rate of HBsAg in Fangchenggang population was consistent with that of Guangxi population, both of which were 13.4% [1]. In order to understand the city’s HBsAg school students carrying status, from September to October 1997 on the city of 6201 primary and secondary students to investigate. 1 Subjects and Methods 1.1 Survey respondents to cluster sampling method to select two secondary schools in urban areas, two primary schools 3761 and suburban 1?