Comparison between two household surveys on psychotropic drug use in Brazil: 2001 and 2004.

CEBRID (Brazilian Center of Information on Psychotropic Drugs) conducted two household surveys on drug use in Brazil, the first in 2001 and the second in 2005, making it possible for researchers, for the first time ever, to have a timeline comparison using this type of methodology. The universe studied corresponded to the Brazilian population living in 107 Brazilian cities with more than 200.00 inhabitants. 8,589 people were interviewed in the first survey in 2001, and 7,939 people in the second. Data on prevalence of lifetime use for psychotropic drugs showed that there was a significant increase only in the number of people who had made lifetime use of psychotropic substances (including tobacco and alcohol). In 2001, 19.4% of the interviewees reported having used some type of drug, and the ranking of lifetime drug use in 2004 was 22.8%, a statistically significant increase. There was also a statistically significant increase in lifetime use of alcohol and tobacco in comparison between the two surveys.