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目的了解高县甲型病毒性肝炎流行病学趋势,为制定控制策略提供科学依据。方法对高县1990-2012年甲型病毒性肝炎疫情资料,采用描述性流行病学分析方法进行统计分析。结果1990-2012年共报告甲型病毒性肝炎1238例,死亡病例4例,年平均发病率和死亡率为11.06/10万和0.04/10万;发病率最高年份为1991年(31.02/10万),最低年份为2010年(1.26/10万);1990-2012年间年平均发病率经趋势卡方检验,差异有统计学意义(χ2=126.99,P<0.01);累计各年每月均有病例发生,少年和青壮年农民发病占总病例数的65.19%,男女病例性别比1.57∶1。结论高县1990-2012年间甲型毒性肝炎年发病率总体呈现逐年下降趋势,发病数以少年和青壮年农民为主。
Objective To understand the epidemiological trend of hepatitis A in high counties and provide a scientific basis for the development of control strategies. Methods The epidemiological data of hepatitis A from 1990 to 2012 in Gao County were analyzed by descriptive epidemiological analysis. Results A total of 1238 cases of hepatitis A and 4 deaths were reported from 1990 to 2012, with an average annual morbidity and mortality of 11.06 / 100000 and 0.04 / 100000; the highest incidence was 1991 (31.02 / 100000 ) And the lowest year was 2010 (1.26 / 100000). The average annual incidence rate in 1990-2012 was statistically significant by chi-square test (χ2 = 126.99, P <0.01) Case occurrence, juvenile and young peasant incidence accounted for 65.19% of the total number of cases, male and female cases of sex ratio 1.57: 1. Conclusion The annual incidence of type A to T hepatitis between 1990 and 2012 in Gao County shows an overall declining trend year by year. The incidence of juvenile and young peasants is the most common in this county.