Epidemiological and spatial-temporal clustering characteristics of pertussis in Hebei Province from 2013 to 2022
Objective To analyze the spatial-temporal epidemiological characteristics of pertussis from 2013 to 2022 in Hebei Province and to provide a reference for improving prevention and control measures.Methods Based on the data of pertussis reported in Hebei Province during 2013-2022 to analyze the popular characteristic,the ArcGIS 10.8 software was used to construct a ring map and to perform spatial autocorrelation analysis;the SaTScan 10.1 software was used for spatial-temporal scan statistics.Results There were 6 715 cases of the cumulative report in Hebei Province from 2013 to 2022 without death.The annual report incidence was 0.90/100 000.The overall incidence rate showed an upward trend from 2013 to 2019,and during 2020-2021,it showed a sharp decline,but in 2022,it showed a sharp increase.Summer and autumn are the peak seasons of the epidemic.The incidence was highest in age group<1 year(48.67%),and the lowest age group in age group ≥15 years(0.45%)and mainly scattered children(78.03%);the incidence about men is higher than women.Spatial autocorrelation analysis showed that the onset of pertussis has spatial clustering,and high-high clusters were found in Langfang,Baoding,and Cangzhou,the top three countries with reported incidence.The area covered by a low-low cluster was consistent with the distribution of the corresponding low-incidence areas in this study.Space-time scan detects five statistically significant areas,and three zones were concentrated in 2022.Conclusions The incidence of pertussis in Hebei had obvious season,population,and area-specific differences.There was obvious spatiotemporal and clustering,so the control of key areas should target the characteristics of time and space.