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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: Prev Sci. 2008 Jul 17;9(3):191–201. doi: 10.1007/s11121-008-0095-8

Table 1.

Perceptions about the risk of harm from nonmedical use of prescription drugs and other substances, among college students (Weighted N=2,271).

Percent of Students (Weighted) reporting Level of Risk
No Risk Slight Risk Moderate Risk Great Risk Can't Say

Prescription Stimulants 4.0% 22.0% 42.2% 25.2% 6.6%
Prescription Analgesics 2.0% 20.8% 42.4% 27.8% 7.0%
Marijuana 14.8% 47.1% 29.9% 7.2% 1.0%
Cocaine 0.8% 2.9% 22.0% 72.2% 2.1%
Alcohol 8.4% 35.2% 38.4% 17.4% 0.7%

Perceived harmfulness was assessed at Time 2. Frequencies were computed for 862 students who participated in all three assessments, and weighted to represent the general population of screened first year students (Nwt=2,271). Rows sum to 100% within rounding error. With the exception of alcohol, frequencies correspond to the perceived harmfulness associated with “occasional” nonmedical use of each drug. Perceived harmfulness of alcohol refers to having 5 or more drinks once or twice each weekend.