广州市海珠区2013-2022年流行性感冒发病的季节性特征分析
Seasonal characteristics of influenza in Haizhu district of Guangzhou from 2013 to 2022
周莹 1夏芳芳 1蔡振练 1刘青连 1汪慧2
作者信息
- 1. 广州市海珠区疾病预防控制中心,广东广州 510288
- 2. 广州市疾病预防控制中心,广东广州 510440
- 折叠
摘要
目的 了解广州市海珠区流行性感冒(流感)的流行特征,为流感防控提供科学依据.方法 通过中国疾病预防控制信息系统收集广州市海珠区2013-2022年流感病例数据,联合运用集中度、圆形分布法和季节指数进行流感的季节性特征分析.结果 广州市海珠区2013-2022年累计报告流感病例34 433例,年均发病率为203.98/10万,发病率最高为2019年795.35/10万,总体呈上升趋势(x2=36 936.43,P＜0.001);发病人群主要集中在15岁以下儿童(69.22％);以学生(29.52％)、散居儿童(28.25％)和托幼儿童(14.44％)为主.集中度M=0.44,圆形分布的总集中趋势y=0.31(Z=3 392.86,P＜0.001),表明流感具有一定的季节分布.季节指数结果提示12月-次年1月、3-6月是流感的高发季节,其中1月和6月流感的发病强度较大.结论 广州市海珠区2013-2022年流感流行呈一定季节性,主要集中在冬季和春夏交接季高发,15岁以下儿童是流感防控的重点人群.
Abstract
Objective To understand the epidemiological characteristics of influenza(flu)in Haizhu district,Guangzhou city,and provide scientific basis for the prevention and control of influenza.Methods The data on influenza cases in Haizhu district of Guangzhou city from 2013 to 2022 were collected through the China Disease Control and Prevention Information System,and the epidemic seasonal characteristics of influenza was analyzed by jointly applying the concentration degree,circular distribution method and seasonal index.Results The cumulative number of reported influenza cases in Haizhu district,Guangzhou city,from 2013 to 2022 was 34 433,with an average annual incidence rate of 203.98/100 000,and the highest incidence rate was in 2019(795.35/100 000),with an overall increasing trend(x2=36 936.43,P＜0.001);the incidence of influenza cases was mainly concentrated in children under the age of 15(69.22％);the occupational distribution was dominated by students(29.52％),scattered children(28.25％),and children in childcare(14.44％).The concentration degree was M=0.44 and the total concentration trend of the circular distribution was γ=0.31(Z=3 392.86,P＜0.001)indicating that influenza had a certain seasonal distribution.The seasonality index suggested that December to January of the following year and March to June.were the months of higher influenza incidence,and were peaked in January and June.Conclusion The influenza in Haizhu district,Guangzhou city,from 2013 to 2022 had certain seasonal characteristics,mainly focusing on the high incidence in winter and the transition season between spring and summer,and children under 15 years old were the key population for influenza prevention and control.
关键词
流行性感冒/集中度法/圆形分布法/季节指数法Key words
Influenza/Concentration/Circular distribution/Seasonal index引用本文复制引用
基金项目
广州市科技计划项目(2023A03J0939)
出版年
2024
NETL
NSTL
万方数据