Abstract:Objective To investigate the status of the very old inpatients (≥90 years) and analyze the risk factors for hospital death. Methods All over-90-year-old inpatients who discharged from general wards of our hospital during December 2014 to November 2015 were identified from our hospital information system. Then a retrospective study was performed on their medical records and clinical data, such as age, sex, doctor-visit causes, wards, hospitalization time and prognosis, vital signs at admission, admission blood routine and biochemical examination results. Results During the study period, there were 340 admissions of 231 patients aged over 90 years in our hospital. They were at an average age of (92.09±2.08) years, and with a median hospital stay of 10d (ranging from 5 to 16d). The top 3 admitting diagnoses were pulmonary infection, coronary heart disease and hip fracture. There were 40 patients dead during hospitalization, with a mortality of 17.32%s. Among them, pneumonia, cerebral vascular disease and advanced cancer were recorded as the most common admitting diagnoses. Multivariate analysis showed that hospitalization due to pneumonia, shock index ≥0.7 at admission, neutrophil percentage ≥0.7, urea ≥12mmol/L, and serum albumin <35g/L were risk factors for hospital death in the cohort. Conclusion Pneumonia is the leading admitting diagnosis in the patients over 90 years old. Clinicians need to strengthen the assessment on inflammatory condition, as well as circulatory and nutritional status in the very old inpatients.