OBJECTIVE To understand the characteristics of nosocomial infections in patients of mental hospital,find out the influencing factors,and put forward effective prevention measures in response to populations at high risk of nosocomial infections and predisposing factors so as to improve the medical quality,reduce the incidence of nosocomial infections,and ensure the safety of the patients.METHODS The medical records of 6 415 patients who were discharged from the mental hospital from Jan 2004 to Dec 2012 were ...