Drug use in college students: a 13-year trend.

Objective: To analyze drug use trends among college students in 1996, 2001 and 2009.

Methods: A cross-sectional epidemiological study with a multistage stratified cluster sample with 9,974 college students was conducted in the city of São Paulo, southeastern Brazil. An anonymous self-administered questionnaire was used to collect information on drug use assessed in lifetime, the preceding 12 months and the preceding 30 days.

Drug consumption among medical students in São Paulo, Brazil: influences of gender and academic year.

Objective: To analyze alcohol, tobacco and other drug use among medical students.

Method: Over a five-year period (1996-2001), we evaluated 457 students at the Universidade de São Paulo School of Medicine, located in São Paulo, Brazil. The students participated by filling out an anonymous questionnaire on drug use (lifetime, previous 12 months and previous 30 days).

Alcohol and drug use among university students: gender differences.

Objective: This study compared the pattern of alcohol, legal and illegal drugs use among students of the Universidade de São Paulo (Brazil) in 1996 and 2001.

Method: Samples of 2.564 (1996) and 2.

[Factors associated with drug and alcohol use among university students].

Objective: Recent studies show an alarming rate of alcohol and drug use among university students. The objective of this study was to assess the level of association between lifestyle and socioeconomic status and the prevalence of alcohol, tobacco, medicine, and "illicit drug" use in the last 12 months among university students.

Methods: The sample included 926 undergraduate students in the Biology Department of a university in São Paulo who completed an anonymous, self-applied questionnaire in 2000 and 2001.

Comparative study of drug use among undergraduate students at the University of São Paulo--São Paulo campus in 1996 and 2001.

Objective: To compare the rate of drug use prevalence and to investigate opinions regarding such use among undergraduate students at the University of São Paulo--São Paulo campus in 1996 and again in 2001.

Methods: Both studies followed the same procedures of sampling and data collection. A random sample of undergraduate students, divided into the areas Humanities, Exact Sciences and Biologic Sciences, responded to an anonymous and self-report survey regarding the use of licit and illicit drugs within the last 30 days, within the last 12 months and over the lifetime of the subject.