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. Author manuscript; available in PMC: 2015 Oct 23.
Published in final edited form as: Ann Intern Med. 2009 May 19;150(10):696–704. doi: 10.7326/0003-4819-150-10-200905190-00007

Figure 2. Effects of surgeon case volume and missed quality measures on mortality.

Figure 2

Adjusted mortality of patients undergoing coronary bypass surgery by quartile of surgeon volume and count of missed quality measures. As for hospital volume, strong association between the number of quality measures missed and mortality across all quartiles of surgeon volume is observed, with mortality similar even for lowest volume surgeons if no quality measures are missed. Models adjusted for age, gender, DRG predicted mortality, congestive heart failure, hypertension, neurological disorders, diabetes with complications, renal failure, coagulopathy, deficiency anemia, and whether or not an internal mammary graft was used during the procedure, the volume and number of missed quality measures as well as for the interaction between volume and number of missed quality measures.