Change Laboratory intervention for promoting learning about causes and prevention of workplace aggressions in a mental health facility.

Aim: To assess a Change Laboratory (CL) intervention concerning the promotion of learning about the causes and prevention of workplace aggression in a Healthcare Service for Drug and Alcohol Users.

Background: It is estimated that one fourth of all healthcare professionals worldwide have already experienced some kind of workplace violence. In mental health facilities, aggressions have multiple origins, including moments when physical restraint is applied or situations when the patients' demands are not met.