1. Meta-analysis and systematic review of the relationship between surgeon annual caseload and mortality for elective open abdominal aortic aneurysm repairs 
Emily L. Young, MA, MBBS, Peter J.E. Holt, MRCS, Jan D. Poloniecki, PhD, Ian M. Loftus, MD, FRCS, Matt M. Thompson, MD, FRCS 
Journal of Vascular Surgery 
Volume 46, Issue 6, Pages (December 2007)
DOI: /j.jvs
Copyright © 2007 The Society for Vascular Surgery Terms and Conditions

2. Fig 1
QUORUM flowchart.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2007 The Society for Vascular Surgery Terms and Conditions

3. Fig 2
Scatter plot showing the number of cases performed by surgeons against the mortality rate for surgeons operating at each volume for elective abdominal aortic aneurysm repairs. The horizontal line represents the cohort mean mortality rate of 5.56%. The trend line is a line of best fit, and no statistical inferences have been made from this.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2007 The Society for Vascular Surgery Terms and Conditions

4. Fig 3
Forest plot displaying the results of the meta-analysis. The pooled effect estimate was an odds ratio of 0.56 (95% confidence interval, ) at a threshold of 13 elective open abdominal aortic aneurysm repairs per annum. There was no evidence of significant heterogeneity. Sensitivity analysis did not demonstrate a significant change to the results.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2007 The Society for Vascular Surgery Terms and Conditions