[Perceived norms of peer alcohol use among university students].

Alcohol is the most prevalent legal drug among university students, and it is used recreationally. The objectives of this study were to identify the perceived norms of alcohol use among university students, contrast the students' perception regarding peer alcohol use and the actual alcohol use prevalence, and compare the subjects' own alcohol use with their perception of peer alcohol use. A survey was performed on 275 students of a public university located in Rio de Janeiro (Brazil), in 2008. The students' perception about peer alcohol use once in a lifetime and over the last 12 years was correct; but their perception regarding the last 30 days was overestimated. Students consume alcoholic beverages recreationally, mainly at parties and bars with friends and peers. Alcohol use is above established standards.