In Colombia, in 2008, the prevalence of alcohol abuse was 6.7% and dependence 2.3%. In the same year, the age at which alcohol consumption begins was 15.1 years old SD 3; for 12.2% of Colombians, their alcohol intake was harmful; the age group most at risk of harmful consumption was between 18 and 24. Although there are data indicating higher frequency in higher (5 and 6) socio-economic groups, the most harmful use can be found in lower groups (1 and 2) (3-4).