Polydrug use and its relationship with the familiar and social context amongst young college students.

The prevalence of polydrug use continues to grow among Spanish college students. The European Observatory for Drugs and Addictions establishes three different types of polydrug use: Pattern A (consumers of alcohol and tobacco), Pattern B (consumers of cannabis plus alcohol and/or tobacco) and Pattern C (consumers of cannabis plus alcohol plus tobacco plus at least one other kind of illegal drug). The objectives are: 1) to study the frequency of substance consumption among a sample of young Spanish undergradudates studying health and sports science according to their sex; 2) to describe the patterns of polydrug use; 3) to study the relationship between the polydrug use of the participants and polydrug use within their closest environment (parents, sisters or brothers, best friend and partner). The sample was composed of 480 Spanish undergraduates (43.7% females) aged 18 to 36. The level of drug consumption of students and their closest reference persons was evaluated by means of a self-report measure. A total of 46% of the participants reported consumption of two or more substances; among them 29.4% corresponded to Pattern A, 50.7% to Pattern B and 16.7% to Pattern C, while 3.2% corresponded to other multiple consumption patterns (alcohol + cocaine; alcohol + cocaine + tobacco; alcohol + inhalants; amphetamines + hallucinogens + Spice). An important correlation was observed concerning polydrug use between participants and their closest reference persons: the more the reference person is a multiple consumer, the more the participant tends to consume. Polydrug use within the closest environment emerges as one of the key elements to be taken into account in further prevention programs.