Communication to workers of epidemiology study results is gaining increasing emphasis because of the need to notify study subjects and the responsibility to warn workers of potential workplace hazards. Industry has a unique responsibility in this regard both for ethical reasons and for gains in improving workers' knowledge of workplace hazards. We describe our recent efforts to notify 9648 workers potentially interested in the results of an epidemiology study that found increased rates for cancer. We found that both study and nonstudy subjects were equally interested the findings. We conclude that most workers view the notification as evidence of the company's commitment to maintain a safe workplace, and are pleased that the company undertook the study and reported the results to them. Unfavorable comments comprised less than 1% of the responses.