临沂市自然人群乙肝病毒感染状况调查

目的 了解临沂市自然人群ＨＢＶ感染状况。方法 整群、分层抽样确定调查对策，抽出检测ＨＢｓＡｇ、抗－ＨＢｓ、抗－ＨＢｃ、ＨＢｅＡｇ。结果 自然人群乙肝患病率为４８．０６／１０万，ＨＢｓＡｇ、抗－ＨＢｓ、抗－ＨＢｃ阳性率及ＨＢＶ感染率分别为７．１１％、２３．６４％、２７．７２％和４６．５９％。年龄上有０￣１０岁和２０￣４０岁两个感染高峰，４０岁后随年龄增高而降低。ＨＢｓＡｇ阳必具有明显的家庭聚集性，阳

SURVEY AND ANALYSIS ON HBV INFECTION STATE OF NATURAL POPULATION IN LINYI CITY

Objective To find out HBV infection state of natural population in LinyiCity. Methods Survey objects were determined by chester and stratified samplings,andthe HBsAg, anti -- HBs, anti -- HBc and HBeAg were tested by hemospaisia. Results Themorbidity rate of HB in natural population was 418. 06/105,and the positive rate of HBsAg,anti -- HBs, and anti -- HBc were 7. 11 %, 23. 64 %and 27. 27% respectively. The infection rate of HBV was 46. 59%. There was two high infection climaxes between theage of 0-- 10 and 20-- 24 years old and after 40 years old,the positive rate was decreasingwith the age growing. The positve rate of HBsAg was characterized by its obvious familyclustering, the relative risk of infecting HBV in children with HBsAg positive parentswas redoubled and the detectable rate of HBeAg was also increased with the increase ofthe titre of the positive HBsAg. There was positive correlation between HBsAg andHBeAg. The distribution of anti -- HBs, anti -- HBc and the infection rate of HBV wassimilar to HBsAg. Conclusion Linyi City beglongs to moderate infective area of HB with53. 41% of the population being the susceptible and so sanitary protection should beaugmented to prevent infection of HB.