Glossary of Abbreviations:
CABG: Coronary artery bypass graft
AVR: Aortic valve replacement
MVR: Mitral valve repair or replacement
LIMA: Left internal mammary artery
RIMA: Right internal mammary artery
BIMA: Bilateral internal mammary arteries
MI: Myocardial infarction
CPB: Cardio-pulmonary bypass
SD: Standard deviation
IQR: Interquartile range
OR: Odds Ratio
HR: Hazard Ratio
CI: Confidence interval
NACSA: National Adult Cardiac Surgery Audit
NICOR: National Institute of Cardiovascular Outcomes Research
ONS: Office for National Statistics
BMI: body mass index
AF: atrial fibrillation
COPD: chronic obstructive pulmonary disease
SSI: Surgical Site Infection