This program is an online questionnaire collecting data from self-identified students attending a two- or four-year college, university or technical school at least part-time during the specified sampling period. Data are collected at the completion of the fall and spring academic semesters/quarters and at the end of the summer. Each sample is equally distributed across the four geographic regions of the United States (W, NW, S, NE) and is composed of self-identified students who have agreed to be contacted to complete online surveys. Cases are defined as self-reported non-medical use of prescription drugs by college students in the previous academic semester/quarter or over the summer break. Cases are assigned to the reported 3-digit ZIP code of the college student’s residence.

This study is conducted by Richard C. Dart, M.D., Ph.D. at the Rocky Mountain Poison and Drug Center (RMPDC), a division of Denver Health and Hospital Authority (DHHA), in Denver, CO. Other key study personnel include Ryan Westberry, M.S., M.B.A. (Business Manager – Operations).