Papachristofi, Olympia; Klein, Andrew A; Mackay, John; Nashef, Samer; Fletcher, Nick S; Sharples, Linda D; Association for Cardiothoracic Anaesthesia and Critical Care (AC; (2018) Does the "Weekend Effect" for Postoperative Mortality Stand Up to Scrutiny? Association for Cardiothoracic Anesthesia and Critical Care Cohort Study of 110,728 Cardiac Surgical Patients. Journal of cardiothoracic and vascular anesthesia, 32 (5). pp. 2178-2186. ISSN 1053-0770 DOI: https://doi.org/10.1053/j.jvca.2018.04.015

Papachristofi, Olympia; Klein, Andrew A; Mackay, John; Nashef, Samer; Fletcher, Nick; Sharples, Linda D; Association of Cardiothoracic Anaesthesia and Critical Care (ACT; (2017) Effect of individual patient risk, centre, surgeon and anaesthetist on length of stay in hospital after cardiac surgery: Association of Cardiothoracic Anaesthesia and Critical Care (ACTACC) consecutive cases series study of 10 UK specialist centres. BMJ open, 7 (9). e016947-. ISSN 2044-6055 DOI: https://doi.org/10.1136/bmjopen-2017-016947

Mackay, JH; Nashef, SAM; Klein, AA; Papachristofi, O; Sharples, LD; Fletcher, SN; Association of Cardiothoracic Anaesthetists (ACTA); (2016) Anaesthetist contribution to mortality after cardiac surgery - a reply. Anaesthesia, 71 (5). pp. 599-601. ISSN 0003-2409 DOI: https://doi.org/10.1111/anae.13475 Full text not available from this repository.

Papachristofi, Olympia; Jenkins, David; Sharples, Linda D; (2016) Assessment of learning curves in complex surgical interventions: a consecutive case-series study. Trials, 17 (1). 266-. ISSN 1745-6215 DOI: https://doi.org/10.1186/s13063-016-1383-4

Papachristofi, Olympia; Klein, Andrew; Sharples, Linda; (2016) Evaluation of the effects of multiple providers in complex surgical interventions. Statistics in medicine, 35 (28). pp. 5222-5246. ISSN 0277-6715 DOI: https://doi.org/10.1002/sim.7057 Full text not available from this repository.

Papachristofi, O; Sharples, LD; Mackay, JH; Nashef, SAM; Fletcher, SN; Klein, AA; Association of Cardiothoracic Anaesthetists (ACTA); (2015) The contribution of the anaesthetist to risk-adjusted mortality after cardiac surgery. Anaesthesia, 71 (2). pp. 138-146. ISSN 0003-2409 DOI: https://doi.org/10.1111/anae.13291