基于流行特征与专家调研构建手术相关感染暴发调查表单

Background&nbsp;&nbsp;Postoperative infection outbreakPIOis a concentrated manifestation of the harmfulness of hospital-acquired infectionsand how to effectively control the occurrence of PIO promptly is currently the focus of infection control. At presentsome infection prevention personnel lack emergency response experience and ability to investigate suspected sources of infection in the face of infection clusters. Objective&nbsp;&nbsp;To develop an investigation form for postoperative infection outbreakPIOand identify the sources of infection in the early stage to prevent outbreaks. Methods&nbsp;&nbsp;From January to May 2023Worldwide Database for Nosocomial OutbreaksWDNOPubMedCNKIand other databases were searched for studies related to PIO. Data extraction and annotation were performed. After cleaning the title and abstract text information of infection control literature downloaded from the PubMed databasea large-scale training set was constructed to build a word vector model based on the Skip-Gram method. Preliminary identification of risk factors for PIO was summarized based on the classification results of the word vector model constructed. Subsequently15 consulting experts were invited to evaluate the importance of PIO risk factors using a modified Delphi method. The Analytic Hierarchy ProcessAHPwas adopted to calculate weight and combined weight for the primary and secondary indicators to determine the possible sources of infection outbreaks.Based on thisan investigation form for PIO was constructed. Results&nbsp;&nbsp;A total of 203 PIO-related studies were finally included.A total of 15 experts were consulted by the modified Delphi methodand all the questionnaires for the two rounds of expert consultation were returned with a positive coefficient of 100.00%. The average authoritative coefficientCrof 15 experts was0.860.10the average familiarityCswas0.810.10and the average judgmentCawas0.920.10.Kendall's W&nbsp;coefficientKendall's Wof concordance after two rounds of expert consultation was 0.351P<0.005which showed that the consensus of expert opinion was goodindicating a good consensus among expert opinions. After two rounds of the modified Delphi method4 primary indicators and 19 secondary indicators were constructed. Within the indicator systemthe weights of the 7 primary indicators ranged from 22.23% to 27.50%and the combined weights of the secondary indicators ranged from 3.32% to 6.29%. Based on thisthe PIO investigation questionnaire was developedprimarily including five aspects of patient basic informationinfection statusperioperative factorspersonneland environment. Conclusions &nbsp;Based on epidemiological characteristics and expert consultationa form used for PIO investigation was constructed. The content covers the main risk factors and critical points that may lead to outbreaksproviding a reference for identifying potential sources of PIO.