Summary: Nationally-representative survey of ambulatory surgery in hospital-based and freestanding ambulatory surgery centers. Data collected includes patient demographics, information about the surgical procedure(s), and patient diagnoses. NSAS was conducted from 1994 to 1996; data collection resumed in 2006.
http://www.cdc.gov/nchs/nsas.htm
Click
here for a PubMed search for articles using this dataset.