Background: Speaking up with concerns in the interest of patient safety has been identified as important for the quality and safety of patient care. The study objectives were to identify how anaesthesia care providers speak up, how their colleagues react to it, whether there is an association among speak up form and reaction, and how this reaction is associated with further speak up.
Methods: Data were collected over 3 months at a single centre in Switzerland by observing 49 anaesthesia care providers while performing induction of general anaesthesia in 53 anaesthesia teams.