Abstract:Objective To investigate the epidemiological characteristics of healthcare associated infection (HAI) in neonatal units and provide scientific evidence for the prevention and control of neonatal HAI. Methods A retrospective analysis was made on the children admitted to the neonatal department of Shaanxi People's Hospital from January 2014 to December 2017. The clinical data of the children with nosocomial infection during hospitalization were collected and analyzed. Results From January 2014 to December 2017, we enrolled 9 634 neonates cases in Department of Neonatology, Shaanxi Province People’s Hospital. There were 328 cases having nosocomial infections. There was no significant difference in NI incidence from 2014 to 2017 (P > 0.05). In recent 4 years, the infection rate was 5.51 and the incidence of catheter-related blood flow infection was 6.00. There was no significant difference in the incidence of catheter-related blood flow infection from 2014 to 2017 (P > 0.05). The duration of ventilator use was 1078 days, and the incidence of ventilator-associated pneumonia was 19.48. There was no significant difference in the infection rate of ventilator-associated pneumonia from 2014 to 2017 (P > 0.05). Blood-related infection was the most common site of nosocomial infection, followed by respiratory infection. The infection rates of gastrointestinal tract, respiratory tract and other sites from 2014 to 2017 were significantly different (P < 0.05). There was significant difference in NI incidence among children with different birth weight (P < 0.05). There was no significant difference in the incidence of NI in each quarter between 2014 and 2017 (P < 0.05). Conclusions The control effect of nosocomial infection in the Department of Neonatology of Shaanxi People's Hospital is still acceptable, but the monitoring of nosocomial infection still needs to be strengthened. The focus should be on the prevention of very low birth weight group and blood-related infections and the adoption of targeted preventive and control measures to reduce the incidence of nosocomial infections.