[The efficacy of a health education activity for multi-risk workers persists in the medium run].

Recently, we reported the effectiveness of a health education activity for multi-risk workers. In this study, we investigated whether or not the efficacy of the 1-year health education program persists in the medium run. BMI, systolic blood pressure and triglyceride out of 5 items which improved significantly after a 1-year health education program, persisted after 3-5 years.