Objective 　To investigate disease constitution of elderly inpatient in the Xuanwu Hospital, Capital Medical University in Beijing in 2011, so as to provide baseline data for further study.
Methods 　Elderly (patients no less than 60 years old) inpatients’ records in the Xuanwu Hospital, Capital Medical University in 2011 were collected. Based on all the diagnosis on hospital discharge records, the diseases were standardized and classified according to the International Classification of Disease, 10th Edition (ICD-10). Data (including general information of the inpatients, all discharge diagnosis, and the distribution of disease type, age and sex) were analyzed through descriptive analysis using Microsoft Excel 2007 software. SPSS 17.0 software was performed for hypothesis test.
Results 　a) The total numbers of elderly inpatients were 13 807 in 2011, accounting for 39.79% of all the inpatients. Males were more than females (male: female=1.26 to 1). The average kind of disease each patient was diagnosed with was 4.41, ranging from 1 to 11. b) The disease spectrum of patients with one disease was nervous system diseases, neoplasms, and digestive system diseases. The primary and secondary diseases of patients with two diseases were mostly circulatory system diseases. c) All the diagnosis included 18 categories, the top 7 were circulatory system diseases, endocrine, nutritional and metabolic diseases, digestive system diseases, respiratory system diseases, and nervous system diseases, accounting for 83.4% of all the diagnosis. The primary diagnosis included 18 categories, the top 5 were circulatory system diseases, neoplasms, digestive system diseases, respiratory system diseases, and nervous system diseases, accounting for 68.6% of all the elderly inpatients. d) In the circulatory system diseases, the top 5 diseases were cerebral infarction, occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction, angina pectoris, acute myocardial infarction, atherosclerosis, chronic ischaemic heart disease, accounting for 69.8% of all the circulatory system diseases patients. Diseases in different age and gender group were cerebral infarction, angina, acute myocardial infarction, and chronic ischemic heart disease (P lt;0.05).
Conclusion 　The disease constitution of the Xuanwu Hospital, Capital Medical University is complex, and the primary diagnosis is mainly circulatory system diseases. It can be concluded that in the following studies attention should be paid to drug utilization of circulatory system diseases, so as to provide evidence for making the China specific potentially inappropriate medicine list and disease prevention for the elderly.

Citation： LIU Chen,WANG Yuqin. Disease Constitution of Elderly Inpatients in the Xuanwu Hospital of Capital Medical University in 2011. Chinese Journal of Evidence-Based Medicine, 2013, 13(4): 385-392. doi: 10.7507/1672-2531.20130065 Copy