目的了解庆阳市突发公共卫生事件的流行病学特征,为预防和控制突发公共卫生事件提供依据。方法应用描述性流行病学方法对2004-2012年庆阳市突发公共卫生事件疫情特征进行统计分析。结果 9年间庆阳市共报告突发公共卫生事件48起,发病1 902例,死亡13例,罹患率4.46%,病死率0.68%。事件类型以传染病疫情(30起)和中毒事件(14起)为主;事件分级以未分级事件(15起)和一般事件(25起)为主,无重大以上级别的事件发生。发生场所主要集中在中、小学校和托幼机构(34起),发生地点位于乡镇以下农村地区的有41起,占85.42%。结论庆阳市突发公共卫生事件以传染病疫情和食物中毒为主,防控重点应放在农村中、小学校和托幼机构。 Objective To understand the epidemiological characteristics of public health emergencies in Qingyang and provide the basis for prevention and control of public health emergencies. Methods Descriptive epidemiological methods were used to analyze the epidemiological characteristics of public health emergencies in Qingyang from 2004 to 2012. Results In the past 9 years, a total of 48 public health emergencies were reported in Qingyang City, with 1 902 cases of morbidity and 13 deaths. The attack rate was 4.46% and the case fatality rate was 0.68%. The types of incidents were mainly infectious diseases (30 cases) and poisoning cases (14 cases). The grading of events was mainly based on unfractionated events (15 cases) and general events (25 cases), with no major or higher incidents. The occurrences occurred mainly in primary and secondary schools and nurseries (34), with 41 occurring in rural areas below the township, accounting for 85.42% of the total. Conclusions The public health emergencies in Qingyang City are dominated by the outbreak of infectious diseases and food poisoning. The prevention and control should focus on primary and secondary schools and nurseries in rural areas.