1. Off-pump versus on-pump coronary artery bypass grafting: A systematic review and meta-analysis of propensity score analyses 
Oliver Kuss, PhD, Benita von Salviati, MS, Jochen Börgermann, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 140, Issue 4, Pages e13 (October 2010)
DOI: /j.jtcvs
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
Flow diagram of initially retrieved and eventually included studies. PS, Propensity score.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

3. Figure 2
Results from previous meta-analyses of RCTs, observational studies, and our propensity-score analyses for all our prespecified outcomes. For the meta-analyses of RCTs, we give the results from the most recent meta-analyses. Results are shown as ORs with 95% CIs. In cases for which the previous meta-analyses reported relative risks, we recalculated the OR by using the formula of Zhang and Yu.21RCT, Randomized clinical trial; OBS, observational study; PS, propensity score; RBC, red blood cell; OP, operation; IABP, intraaortic balloon pump; CI, confidence interval.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

4. Forest plots for all outcomes
Forest plots for all outcomes. To enhance readability, x-axes are only drawn from 0.1 to 10. CIs having values outside this range are marked by an asterisk (∗). CI, Confidence interval; RBC, red blood cell; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

5. Forest plots for all outcomes
Forest plots for all outcomes. To enhance readability, x-axes are only drawn from 0.1 to 10. CIs having values outside this range are marked by an asterisk (∗). CI, Confidence interval; RBC, red blood cell; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

6. Forest plots for all outcomes
Forest plots for all outcomes. To enhance readability, x-axes are only drawn from 0.1 to 10. CIs having values outside this range are marked by an asterisk (∗). CI, Confidence interval; RBC, red blood cell; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

7. Forest plots for all outcomes
Forest plots for all outcomes. To enhance readability, x-axes are only drawn from 0.1 to 10. CIs having values outside this range are marked by an asterisk (∗). CI, Confidence interval; RBC, red blood cell; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

8. Forest plots for all outcomes
Forest plots for all outcomes. To enhance readability, x-axes are only drawn from 0.1 to 10. CIs having values outside this range are marked by an asterisk (∗). CI, Confidence interval; RBC, red blood cell; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

9. Forest plots for all outcomes
Forest plots for all outcomes. To enhance readability, x-axes are only drawn from 0.1 to 10. CIs having values outside this range are marked by an asterisk (∗). CI, Confidence interval; RBC, red blood cell; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

10. Funnel plots for all outcomes
Funnel plots for all outcomes. SQRT, Square root; OR, odds ratio; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

11. Funnel plots for all outcomes
Funnel plots for all outcomes. SQRT, Square root; OR, odds ratio; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

12. Funnel plots for all outcomes
Funnel plots for all outcomes. SQRT, Square root; OR, odds ratio; IABP, intraaortic balloon pump.
The Journal of Thoracic and Cardiovascular Surgery  , e13DOI: ( /j.jtcvs )
Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions