Objective To assess whether reduced health risks resulting from the Coronary Health Improvement Project (CHIP) persist through 18 months. Methods: The CHIP is a four-week health education course designed to help individuals reduce cardiovascular risk by improving nutrition and physical activity behaviors. Analyses were based on 211 CHIP enrollees, aged 24-81 years from Rockford, IL. Results: Improvements in BMI, SBP, DBP, total cholesterol, LDL, HDL, triglycerides and glucose continued through 18 months for those who started the program with higher risk status at baseline. Conclusion: The CHIP is an intensive lifestyle change program that lowers cardiovascular risks through 18 months. (Contains 3 tables.)