TABLE 1.

Prevalence of Illicit Use of Prescription Stimulants Among College Students Based on Survey Research

Author(s)	Methodology and Population	Sample	Stimulant	Illicit Prevalence	Risk Factors
Babcock & Byrne 2000	Cross-sectional, mailed paper survey of all enrolled undergraduate students) (n=1401 at the Massachusetts College of Liberal Arts	N = 283	Methylphenidate (Ritalin)	Lifetime = 16.6%	Traditional-aged (under 25 years old)
Johnston, O’Malley & Bachman 2003a	Longitudinal, mailed paper survey of a national sample of college students one to four years past high school enrolled full-time in two- or four-year colleges or universities	N = 1260	Methylphenidate (Ritalin)	Past year = 5.7%	Male
Low & Gendaszek 2002	Cross-sectional, in-class paper survey of convenience sample of undergraduate students primarily from psychology classes at a small U.S. college	N = 150	Methylphenidate Adderall	Past year = 35.5%	Male, high sensation seeking
Teter et al. 2003	Cross-sectional, Web survey of a random sample of 3500 undergraduate students at the University of Michigan	N = 2250	Methylphenidate (Ritalin)	Lifetime = 5.1% Past year = 2.5%	High family income, low GPA, Jewish religious affiliation, higher rates of risky behaviors
University of Florida Alcohol & Drug Resource Center 2002	Cross-sectional, in-class paper survey of randomly selected classrooms at the University of Florida	N = 1332	Methylphenidate (Ritalin)	Lifetime = 5.9% Past year = 2.9% Past month = 1.5%	NA