The number of hospitalizations involving operating room procedures decreased from 11.1 million in 2011 to 10.1 million in 2014. Total costs for those hospitalizations, however, increased from about $185 billion to $187 billion.
- AHRQ, Healthcare Cost and Utilization Project Statistical Brief #233: Overview of Operating Room Procedures During Inpatient Stays in U.S. Hospitals, 2014
- Statistical Brief #170: Characteristics of Operating Room Procedures in U.S. Hospitals, 2011