Impact of the Ottawa Influenza Decision Aid on healthcare personnel's influenza immunization decision: a randomized trial

Influenza immunization for healthcare personnel reduces frequency and severity of nosocomial influenza outbreaks and influenza-associated morbidity and mortality among patients. The Ottawa Influenza Decision Aid (OIDA) was developed to assist undecided healthcare workers in deciding whether or not to be immunized. ... The OIDA had a significant effect on reducing uncertainty.