Objective Analyze the epidemic characteristics of legal infectious diseases in an urban area of Nanning from 2012 to 2021,and provide a scientific basis for formulating the prevention and control strategies of infectious diseases.Methods A descriptive analysis of the legal infectious disease data reported in the urban area from 2012 to 2021 was conducted.The categorical variables were described by proportion,the Chi-square trend test was used to evaluate the incidence trend,and the comparison of rates was carried out using the Chi-square test.Results A total of 26 legal infectious diseases were reported,with 72 336 cases,with an average annual incidence rate of 1 625.20/100 000,showed an overall downward trend(x2trend=14.62,P＜0.001).There were 159 deaths,with an average annual mortality rate of 3.57/100 000 and a case fatality rate of 0.22％.Hand-foot-mouth disease had the highest incidence,accounting for 58.02％,and AIDS had the highest deaths,accounting for 91.19％.The incidence peaked in May and September,and the incidence in summer and autumn was higher than that in winter and spring.The incidence rate in urban areas and rural-urban fringe areas was higher than that in villages and townships,and the mortality rate in villages and townships was higher than that in urban areas.The incidence of males was higher than that of females(x2=1 882,P＜0.001),and the age group of 0 to＜5 years old was the majority,mainly scattered and childcare children.The majority of deaths in the age group of 40 to＜45 years,with a predominance of household and unemployment,farmers,and retirees.Conclusion The incidence of legal infectious diseases in this urban area is relatively high,showing a downward trend in general.The incidence is higher in summer and autumn,and the proportion of Class C infectious diseases is high.The incidence of hand-foot-mouth disease is the main disease.AIDS is the main cause of death.Doing a good job in the prevention and control of Class C infectious diseases,mainly hand-foot-mouth disease,and continuously strengthening the prevention and control of common Class B infectious diseases such as tuberculosis and AIDS,can effectively reduce the morbidity and mortality of infectious diseases.
An urban area of NanningLegal infectious diseaseEpidemiological characteristicIncidence rateMortality ratePrevention and controlAnalysis
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