The yield from work site cardiovascular risk reduction.

Health decision makers in business need to know what to expect from efforts at cardiovascular risk reduction offered through the workplace. In terms of health, the yield from such efforts is the extent to which risk in the entire work force is lowered. Yield is assessed from available reports of interventions, and is defined as the joint probability of (1) participation of the at-risk work force, (2) retention of participants in an intervention, and (3) improvement on an indicator of risk. The median and range of outcomes are presented so that decision makers can better know what to expect and can have a basis of comparison for the performance of their own risk reduction programs.