Trends in disease characteristics and premature mortality among hospitalised middle-aged patients in Anhui Southern Area, China, between 2011 and 2020: a cross-sectional study

A rising trend in the number of middle-aged inpatients was observed during the study period. The number of hospitalisations reaches its peak at the age of 50. Being male, divorced and having more than two comorbidities are risk factors for premature mortality. So prevention, early detection and appropriate treatment of comorbidities are beneficial in improving health and reducing mortality.