Individual programs for prevention of cardiovascular disease include dietary and drug treatment of hypercholesterolemia, hypertension treatment, and smoking cessation therapies. In this study, the cost-effectiveness of available cardiovascular prevention programs was assessed in Spain in terms of net cost per life-year gained (LYG). Cost-effectiveness ratios ranged from US $2,600 to $80,000 per LYG in men and from $4,500 to $230,000 per LYG in women. In men aged 40-59 years, the ranking of increasing cost-effectiveness was: smoking cessation ($2,608-3,738 per LYG); treatment of moderate and severe hypertension ($8,564-38,678 per LYG); treatment of mild hypertension ($11,906-59,840 per LYG); dietary treatment ($16,143-20,158 per LYG); and drug treatment of hypercholesterolemia ($33,850-81,010 per LYG). In women, the ranking list was: smoking cessation ($4,482-5,756 per LYG), treatment of moderate and severe hypertension ($9,585-57,983 per LYG), treatment of mild hypertension ($15,248-86,075 per LYG), dietary treatment ($57,175-62,154 per LYG); and drug treatment of hypercholesterolemia ($104,100-259,150 per LYG).