The Agency for Healthcare Research and Quality has recently released the 2015 National Inpatient Sample (NIS) and the 2015 Nationwide Readmissions Database (NRD)
In addition AHRQ has released new information in HCUP Fast Stats—National Hospital Utilization and Costs. This topic focuses on national statistics on inpatient stays: trends, most common diagnoses, and most common operations. This Fast Stats update adds national statistics for 2015.