Objective To analyze the causes of death in hospitalized patients in a tertiary comprehensive hospital

so as to provide insights into healthcare management and disease prevention and treatment.Methods Based on the Electronic Medical Record System and Medical Information System of the hospital

the front sheet data of death cases from 2013 to2017 were extracted and analyzed.Results During the period from 2013 to 2017

as the number of discharged patients continued to increase

the number of death cases also increased;the mortality rate was up to 1.03% with a rising trend in general.A positive correlation was observed between the number of discharged patients and the number of death cases（r= 0.97

P= 0.008）.Of the 75

850 discharged male patients（46.73%）

887 died with a mortality rate of 1.17%;of the 86

450 discharged female patients（53.27%）

576 died with a mortality rate of 0.67%.The mortality rate in males was significantly higher than that in females（P<0.05）.In the age groups of <5 years

5-14 years

14-45 years

45-60 years

and ≥60 years

the mortality rates were 0.15%

0.09%

0.23%

0.85%

and 1.91%

respectively;the differences in mortality rate among different age groups were statistically significant（P<0.05）.The top 3 causes of death were tumor（35.41%）

circulatory disease（26.18%）

and respiratory disease（16.68%）

which accounted for 78.27% of the total death cases.Also

significantly more males died of tumor

circulatory disease and respiratory disease than females（all P<0.05）.Conclusion It is important for the hospital to reinforce connotation construction

improve the quality of medical service

as well as enhance primary prevention and health education.