Table 1

 Examples of interventions and intended changes in exposure/behaviour

Rules about smoking at the workplaceReduced passive smoking
Establishment of self-governing groupsIncreased decision latitude and social support
Course in lifting techniquesReduced heavy lifting, adequate lifting behaviour
Health promotion programmeReduced smoking, increased physical activity, better diet
Establishment of a worksite safety committeeBetter safety behaviour
Leadership training of front-line supervisorsHigher role clarity, less role conflicts, fewer interpersonal conflicts