Dony P, et al. - In this observational study performed at a single centre, researchers compared an anaesthesiologist alone (solo anaesthesiologist) with an anaesthesia care team (anaesthesiologist and anaesthesia nurse), to gain insight into the role of anaesthesia nurses as support personnel on quality of care. They carried out propensity score matching by logistic regression to adjust for baseline differences between the two groups and formed pairs of perfectly matched patients. Decreased 30-day postoperative mortality and shorter length of stay were observed in relation to anaesthesia given by teams of anaesthesiologists and anaesthesia nurses vs solo anaesthesiologists. The findings highlight the benefits of the anaesthesia care team model even without any demonstration of causality.