Investigation the prevalence rates of nosocomial infections in Chengdu area from 2018 to 2022
OBJECTIVE To analyze the prevalence rate,infection departments,and antibacterial drug use in Cheng-du area from 2018 to 2022,and to provide data support for horizontal comparison and implementing nosocomial infection prevention and control measures by medical institutions.METHODS A cross-sectional survey was conduc-ted on all inpatient in Chengdu area from 2018 to 2022.RESULTS The nosocomial infection rates in Chengdu were 1.69%,1.55%,1.68%,1.51%,and 1.52%,respectively,with statistically significant differences(P=0.021),and showed a decreasing trend year by year(x2=4.660,P=0.031).The prevalence rate was significant difference(P<0.001)among medical institutions of different scales from 2018 to 2022(P<0.001).The inci-dence rate increased with the increase of the scale of medical institutions(chi-square for trend P<0.001).The in-cidence rates of comprehensive intensive care unit(ICU)in Chengdu from 2018 to 2022 were the highest,which was 20.27%,21.43%,14.08%,18.68%,and 15.59%,respectively.Lower respiratory tract infection accoun-ted for the highest proportion,accounting for 57.30%,55.50%,56.89%,55.58%and 58.29%respectively.Except for 2018,the medical institutions with the larger scale had the lower the usage rate of antibiotics(P<0.05).The use of antibiotics in Chengdu aera showed a significant decreasing trend from 2018 to 2022(P<0.001).The drug resistance rate of Escherichia coli to ceftazidime increased(P=0.023).CONCLUSION In the past five years,the prevalence rate and the use of antibiotics in Chengdu showed a decreasing trend,but the drug resistance rate of pathogens to certain antibiotics increased.