Electronic administrative data/claims

A reliability adjusted measure of Esophagectomy surgical performance that optimally combines two important domains: Esophagectomy hospital volume and Esophagectomy operative mortality, to provide predictions on hospital Esophagectomy survival rates in patients age 18 and over.

A reliability adjusted measure of pancreatic resection surgical performance that optimally combines two important domains: Pancreatic resection hospital volume and pancreatic operative mortality, to provide predictions on hospital pancreatic survival rates in patients age 18 and.

Percentage of patients undergoing conventional (non-eversion) carotid endarterectomy who have patch closure of the arteriotomy..