Analysis of risk factors for wound infection in animal injury patients and establishment of predictive models
Objective:To analyze the risk factors of wound infection in patients with animal injuries and to es-tablish a predictive model.Methods:The clinical data of 649 patients with animal-injury from October 2020 to De-cember 2022 were retrospectively collected.The patients were divided into infection group(n=86)and non-infec-tion group(n=563)based on whether they experienced wound infection.The influencing factors of wound infec-tion in patients with animal injury were analyzed,and the regression equation was constructed.The predictive val-ue of the regression equation was analyzed by receiver operating characteristic(ROC)curve.Results:Age≥ 51.5 years old,time from injury to debridement ≥6.5 hours,hand and foot injuries,and diabetes were independent risk factors for wound infection in patients with animal injuries.Regression equations were constructed based on the results of multivariate analysis and ROC curves were drawn with prediction probability.When Logit(P)>0.2043,AUC was 0.930(95%CI:0.897-0.964),Youden index was 0.759,sensitivity was 86.0%,and speci-ficity was 89.9%.Conclusion:The independent risk factors of wound infection in animal injured patients include age≥51.5 years old,time from injury to debridement ≥ 6.5 hours,injured parts are hands and feet,and diabe-tes.The correlation regression equation has a good predictive value for wound infection in animal injured patients,providing a basis for individualized evaluation and treatment of high-risk factors of wound infection in animal in-jured patients.