1. Good at One or Good at All
Good at One or Good at All? Variability of Coronary and Valve Operation Outcomes Within Centers 
Lily E. Johnston, MD, MPH, Emily A. Downs, MD, Robert Hawkins, MD, Mohammed Quader, MD, Alan Speir, MD, Jeff Rich, MD, Leora Yarboro, MD, Gorav Ailawadi, MD 
The Annals of Thoracic Surgery 
Volume 105, Issue 6, Pages (June 2018)
DOI: /j.athoracsur
Copyright © 2018 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
The left panel shows the relationship between the observed-to-expected (O/E) ratio for coronary artery bypass grafting (CABG) operative mortality on the x-axis, and the O/E for aortic valve replacement (AVR) mortality on the y-axis. On the right are O/E ratios for CABG and AVR major morbidity. The line is the fitted least-squares linear regression, and the circles represent each individual institution with the size of the marker corresponding to their operative volume. The shaded region is the 95% confidence interval (CI) for the fitted line.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2018 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
The left panel shows the relationship between the observed-to-expected (O/E) ratio for coronary artery bypass grafting (CABG) and mitral valve repair or replacement (MVR) operative mortality. On the right are O/E ratios for CABG and MVR major morbidity. The line is the fitted least-squares linear regression, and the circles represent each individual institution with the size of the marker corresponding to their operative volume. The shaded region is the 95% confidence interval (CI) for the fitted line.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2018 The Society of Thoracic Surgeons Terms and Conditions