大连市1990～2013年甲型病毒性肝炎流行特征分析

Analysis on Epidemiological Characters of Hepatitis A in Dalian from 1990 to 2013

目的：分析1990~2013年大连市甲肝流行规律,为甲肝的预防控制策略提供依据。方法：对1990~2013年大连市甲肝疫情资料进行描述性流行病学分析。结果：甲肝发病率波动在1.79/10万~192.30/10万之间,年平均发病率为68.73/10万,历经四次流行高峰,自2002年以后呈下降趋势,近几年维持在较低水平。男性发病高于女性,冬春季高发,以农民、家务及待业、工人发病为主。结论：大连市甲肝防治已取得明显成效,但局部暴发的可能性仍然存在,因此应继续实行以保护易感人群和切断传播途径为主的综合防治策略。

Objective： To analysis the epidemic trend of Hepatitis A in Dalian from 1990 to 2013,and offer the scientific basis for prevention and controlling of the disease. Methods： Data of Hepatitis A from 1990 to 2013 were analyzed by descriptive epidemiology. Results：The annual morbidity of HAV was 1. 79 /100 000 to 192. 30 /100 000,and the average morbidity was 68. 73 /100 000. There were four peaks and declined year by year from 2002,and maintained a low level in recent years. There were more male patients than female,and more patients occurred in winner and spring. Famers,unemployments and workers were the most popular occupation. Conclusion： We had achieved remarkable results in prevention of Hepatitis A,but it was possible that HAV broke out in a limited region as well. So we should continue to carry out integrated control strategy to protect the vulnerable populations and cut off the transmission.