Objective To understand the epidemiological characteristics and influencing factors of nosocomial infection in Bengbu area, and to provide basis for formulating effective prevention and control measures of nosocomial infection.
Methods A bedside survey was conducted to investigate the prevalence of nosocomial infection among all patients in 12 public hospitals in Bengbu area from 0:00 to 24:00 on December 24, 2021. The incidence of nosocomial infection, infection site, infection pathogens, the use of antibiotics and the influencing factors of nosocomial infection were analyzed.
Results A total of 5 281 hospitalized patients were investigated in this study. The prevalence rate of nosocomial infection was 1.14%, the most common infection site was the respiratory system (55.0%), and the department with the highest incidence of nosocomial infection was ICU (9.0%). Escherichia coli and Staphylococcus aureus accounted for 8.3% of the infected bacteria, and the use rate of antibiotics in this survey was 38.6%. Multivariate logistic regression analysis showed that extreme age, solid tumor and coma were the independent risk factors of nosocomial infection in the internal factors of patients (P ＜ 0.05 to P ＜ 0.01), while the external factors such as arteriovenous intubation, urinary tract intubation, ventilator use, class Ⅲ surgical incision and the risk of nosocomial infection were significantly increased (P ＜ 0.05 to P ＜ 0.01).
Conclusions The main influencing factors of nosocomial infection are extreme age, solid tumor, coma, arteriovenous intubation, urinary tract intubation, use of ventilator and class Ⅲ surgical incision. Identifying risk factors of nosocomial infection is helpful to identify high-risk groups and factors, and formulate targeted interventions to reduce the risk of nosocomial infection.
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