Get past the advertising and the people in the business will explain what their experience has shown can be done. In contract negotiations, the limitations of the technique will come out. The contractor's delivery is limited by the cooperation given. Behavioral safety is remarkably like a delicate hothouse flower. It takes constant attention if it is to bloom.
Neglect precedes failure here as elsewhere.
A review of a small study might add light for insight into the reactions of people and their behaviors. The transplant researchers would not extend their results to occupational loss control, but their experience should stimulate thought about success in permanently changing behavior. It was a limited study - but then all studies are limited. The median age was 48 with a range from 29-68. Fifty-nine of these patients survived more than three months after their liver transplant and 56 were successfully interviewed.