[eng] Introduction and objective: Atherosclerosis is influenced by many factors such as obesity, dyslipidemia, arterial hypertension, diabetes, sex or age. Atherogenic dyslipidemia (AD) and lipid triad (LT) are indicators of atherosclerosis. The aim of this study was to determine the influence of sociodemographic variables and tobacco consumption on the appearance of AD and LT. Material and methods: Study carried out in 418343 Spanish workers with a mean age of 40.2 years in which sociodemographic variables such as age, sex and social class and their influence on the prevalence of AD and LT were assessed. Results: The overall prevalence of AD was 6.19% (7.33% in men and 3.98% in women) and that of TL was 1.70% (2.9% in men and 1% in women). All the variables analyzed show their influence on the occurrence of AD and TL, especially age. Conclusions: The prevalence of AD and TL is 6.19% and 1.70% respectively. Although all the variables influence the appearance of AD and TL, the one that shows the highest values is age.