Abstract: Objective To analyze the epidemiological characteristics of imported malaria cases and investigate the influencing factors of severe cases in Anhui Province， so as to provide the evidence for improving the control strategy. Methods The epidemiological data of imported malaria cases in Anhui Province from January 1st， 2012 to April 18th， 2017 were collected and analyzed. Results The imported malaria cases in Anhui Province were mainly young men of migrant workers. There were imported malaria cases in 79% （83/105） of counties （districts） in Anhui Province. . Totally 686 imported malaria cases were recorded， in which there were 62 severe cases （9.04%）， and four death cases with the mortality rate of 0.58%. The age， education， initial diagnosed departments， initial diagnosed results， time from onset to seeing a doctor， and time from seeing a doctor to diagnosis were the influencing factors for the severe cases. Conclusion The proportion of severe imported malaria cases is high in Anhui Province. The monitoring sensitivity， clinician's awareness of malaria diagnosis， and health education for migrant workers should be improved.

Key words: Imported malaria； Severe case； Influencing factor； Anhui Province

摘要： 目的 分析安徽省输入性疟疾疫情流行特征，探讨重症病例发生的影响因素，为进一步提高输入性疟疾防治水平提供科学依据。 方法 收集2012年1月1日到2017年4月18日安徽省输入性疟疾病例流行病学资料并分析。 结果 安徽省输入性疟疾发病人群主要为境外务工的青壮年男性。全省79%（83/105）的县、区有输入性病例发生。共收集到686例病例，其中重症62例，占9.04%，死亡4例，病死率0.58%。年龄、学历、初诊单位、初诊结果、发病到就诊时间、就诊到诊断时间是重症发生的影响因素。结论 安徽省输入性疟疾病例中重症比例较高，要进一步提高监测敏感性，增强临床医生的诊断意识、加强对外出务工人员的健康教育。

关键词: 输入性疟疾；重症病例；影响因素；安徽省