Illicit methylphenidate use in an undergraduate student sample: prevalence and risk factors.

STUDY OBJECTIVES To assess the prevalence of illicit methylphenidate use among undergraduate college students at a large university, and to identify alcohol and other drug use behaviors, as well as the negative consequences and risk factors, associated with illicit methylphenidate use. DESIGN Internet survey. SETTING Large public university. SUBJECTS Thirty-five hundred randomly selected undergraduate students. MEASUREMENTS AND MAIN RESULTS Of the 2250 students who completed the survey, 3% reported past-year illicit methylphenidate use. Illicit methylphenidate users were significantly more likely to use alcohol and drugs and report adverse alcohol- and drug-related consequences than prescription stimulant users or students who did not use stimulants. Undergraduate men and women were equally likely to report past-year illicit methylphenidate use. Weekly party behavior was significantly associated with past-year illicit methylphenidate use. CONCLUSION Illicit use of prescription-only stimulants on college campuses is a potentially serious public health issue. More work is needed to promote understanding and awareness of this problem among clinicians and researchers.