关键词: 急诊室, 医院；住院病人；预后；影响因素分析

Abstract: Background　There are few epidemiological studies on the disease spectrum，cause of death and discharge prognosis of hospitalized patients in emergency centers.Therefore，it is important to take a large scale epidemiological survey in emergency centers to understand epidemiological feature，which is of great significance for early detection of patients and high-risk groups and comprehensive prevention and control.Objective　To evaluate the epidemiological distribution of inpatients in emergency centers over the ten years，to explore the influencing factors of prognosis，and to provide clinical evidence for improving quality and safety of diagnosis and treatment in emergency centers.Methods　The demographic characteristics and disease status of inpatients in the Emergency Center of the First Affiliated Hospital of Xinjiang Medical University from 2007 to 2016 were retrieved by hospital information system （HIS），including gender，age，allergy history，length of stay，admission department，discharge department，hospitalization expenses，number of re-admissions within 30 days，number of operations，first hospitalization diagnosis，combined disease and prognosis.Multivariate Logistic regression analysis was used to assess factors influencing prognosis of inpatients in emergency center by SPSS 19.0 statistical software.Results　A total of 16 367 inpatients were hospitalized in emergency centers from 2007 to 2016，15 686 （95.84%） survived and 681 （4.16%） died.The number of inpatients in emergency center in 2016 was 45.59% higher than that in 2007.The results of multivariate Logistic regression analysis revealed that the age 〔OR=1.326，95%CI（1.067，1.648）〕，admission department 〔OR=0.668，95%CI（0.564，0.790）〕，discharge department 〔OR=1.608，95%CI（1.309，1.975）〕，hospitalization expenses 〔OR=3.589，95%CI（2.826，4.559）〕，30-day unplanned readmission 〔OR=4.527，95%CI（1.023，5.183）〕，operation frequency 〔OR=3.353，95%CI（2.901，3.877）〕，mental disorder 〔OR=2.988，95%CI（1.047，8.530）〕，heart disease 〔OR=13.146，95%CI（3.647，47.371）〕，hypertension 〔OR=0.518，95%CI（0.258，0.941）〕，recovery period of cerebrovascular accident 〔OR=1.805，95%CI（1.091，2.989）〕，liver disease 〔OR=1.938，95%CI（1.230，3.056）〕，chronic poisoning 〔OR=2.162，95%CI（1.261，3.691）〕，and concomitant diseases 〔OR=2.322，95%CI（1.270，4.250）〕 had regression relationships with the prognosis of inpatients in emergency center （P<0.05）.Conclusion　The number of patients in emergency center is increasing year by year，and the quality and safety of diagnosis and treatment also attract attention.Age，unit of admission and discharge，hospitalization expenses，the number of operation，30-day unplanned readmission，and combined diseases are independent prognostic factors，influencing survival of inpatient in emergency center.Therefore，we should improve emergency mode and intervene preventable factors to improve the quality and safety of inpatient diagnosis and treatment in emergency centers.

Key words: Emergency service, hospital；Inpatients；Prognosis；Root cause analysis