The aim of the present study was to evaluate the prevalence of certain cardiovascular risk factors in the population of Asepeyo-Elche. The study sample was a working population of 697 persons (71.8% males and 28.2% females) with ages ranging from 15 to 65 years (mean age 34.7 +/- 13.2 years), seen during the first 6 months of 1990 in the health care center of Asepeyo-Elche. The evaluated cardiovascular risk factors and their prevalence rates were: hypertension (14.2%), hypercholesterolemia (18.5%), smoking (52.5%), hyperglycemia (3.5%), obesity (28.2%) and sedentariness (80.3%). We conclude that in our working population the prevalence rates of some cardiovascular risk factors are high and that intervention programs to modify the diet and lifestyle are mandatory to prevent the pathogenetic consequences of these factors.