INTRODUCTION
In 2009, WCHQ partnered with The Society of Thoracic Surgeons (STS) to publicly report three measures related to Isolated Coronary Artery Bypass Grafting (CABG). The organizations represented here agreed to voluntarily share this data in an effort to increase transparency of specialty practice measures.
The measurement period for the data represented is July 1, 2008 - June 30, 2009.
Data is presented as a ratio of observed over expected results. Results to the left of the vertical line are better than expected. Results to the right of the line are worse than expected.