摘要
目的分析1990-2008年浙江省宁波市乙型病毒性肝炎(乙肝)流行规律。方法用描述性流行病学方法对1990-2008年宁波市乙肝疫情资料进行分析。结果宁波市1990-2008年报告乙肝42469例,年平均发病率为39.05/10万,发病率最高为53.99/10万,最低为24.46/10万。乙肝患者20～44岁占乙肝发病总数的67.38%,0～7岁儿童乙肝的发病构成比从1990-1991年的6.40%下降到2002-2008年的0.96%。男女性别比为2.73:1。职业分类中,以农民和工人为主,分别占发病总数的46.64%和18.56%。结论宁波市1990-2008年报告乙肝总体发病呈下降趋势;农村发病高于城市;乙肝多为散发,无明显的季节高峰;乙肝病例以青壮年为主;男性发病人数多于女性;0～7岁儿童乙肝的发病构成比下降明显。
Objective To analyze the epidemiological characteristics of viral hepatitis B in Ningbo from 1990 to 2008.Methods Descriptive epidemiological analysis of the data on hepatitis B in Ningbo from 1990 to 2008 was conducted.Results From 1990 to 2008,a total of 42 469 cases of hepatitis B were reported in Ningbo with an annually average incidence of 39.05/lakh.With the incidence ranging from 24.46/lakh to 53.99/lakh,patients at the age of 20-44 accounted for 67.38% of the overall.In the duration from 2002 to 2008,the constituent ratio of affected children aged 0-7 years fell to 0.96%,from 6.40% in 1990 and 1991,with a sex ratio of 2.73 to 1.As with occupational distribution,farmers and laborers were the ailing majority constituting 46.64% and 18.56% of the whole,respectively.ConclusionThe overall incidence of hepatitis B was declining in Ningbo from 1990 to 2008,which was higher in rural areas than the urban.Without noticeable seasonal incidence peak,scattered patients were commonly observed,and most cases were young adults,males outnumbering females.Furthermore,sharp decrease was shown in the constituent ratio of affected children at the age of 0-7 years.
出处
《疾病监测》
CAS
2010年第4期267-269,共3页
Disease Surveillance
关键词
乙型肝炎
流行特征
发病
hepatitis B
epidemiological characteristics
incidence
