All patients admitted to the PICU during January 1, 2016 to December 31 2025 were included in the study, and all patients were followed up until death or PICU withdrawal. To establish the standardized Access database collected patients' general information, infection, PICU treatment, catheter, and short-term Prognosis and other clinical data.
To investigate PICUs in major cities in China by establishing a high-quality standardized clinical database of PICU inpatients Incidence, fatality rate, pathogen distribution, anti-infective treatment of community-acquired/nosocomial infections in inpatients.