Objective To explore the actual nosocomial infection rate of the elderly patients hospitalized for a long time and analyze the risk factors for recurrent infection and nosocomial infection.Methods Retrospective cross-sectional study was used to investigate the nosocomial infection of patients ≥65 years old who were discharged from Beijing Second Hospital from January 1,2017,to Decem-ber 31,2020. Unconditional Logistic regression analysis was used to screen the risk factors. Spearman rank correlation analysis was used to analyze the correlation between hospital stay and infection factors.Results According to the routine discharge settlement cycle monitoring,the nosocomial infection rate of discharged patients ≥65 years old was 3.12% (171/5480). After combined the number of days in hospital for consecutive patients,the nosocomial infection rate of discharged patients ≥65 years old was 28.89% (526/1821). Multivariate unconditional logistic regression analysis showed that invasive operation[OR=23.05,95%CI:(13.56,39.18)]and hospital stay>30 days[OR=27.58,95%CI:(16.20,46.94)]were risk factors for the nosocomial infection of older patients. There was a positive correlation between the total length of stay of consecutive inpatients and the number of cases of nosocomial infection and drug-resistant bacterial infection (P<0.05).Conclusions The actual nosocomial infection rate of long-term hospitalized older patients is higher than that reported by monitoring report,so the accuracy of nosocomial infection diagnosis should be improved. For elderly patients with risk factors such as invasive operation and hospitalization>30 days,advance intervention is needed to control infection.
关键词
交叉感染/老年病人/长期住院/反复感染/危险因素
Key words
Cross Infection/Older patients/Prolonged length of hospital stay/Recurrent infections/Risk factor