From: The nonmedical use of prescription ADHD medications: results from a national Internet panel
 | Sample | Unadjusteda | Adjusteda | ||
---|---|---|---|---|---|
 | %b | OR | 95% CI | OR | 95% CI |
Age | Â | Â | Â | Â | Â |
   18–25 | 4.34 | 3.52 | 1.76–7.08 | 1.89 | 0.87–3.64 |
   26–49 | 1.27 | 1.00 |  |  |  |
Sex | Â | Â | Â | Â | Â |
   Female | 1.66 | 0.69 | 0.35–1.36 | 1.03 | 0.48–2.22 |
   Male | 2.37 | 1.00 |  | 1.00 |  |
Race/ethnicity | Â | Â | Â | Â | Â |
   White | 2.35 | 1.00 |  |  |  |
   Nonwhite | 1.36 | 0.57 | 0.30–1.09 | 0.59 | 0.29–1.19 |
Education | Â | Â | Â | Â | Â |
   Less than high school graduate | 1.21 | 0.65 | 0.30–1.42 | 0.81 | 0.33–1.95 |
   High school graduate | 1.85 | 1.00 |  | 1.00 |  |
   Some college | 3.26 | 1.79 | 0.78–4.09 | 1.72 | 0.72–4.13 |
   College graduate | 1.41 | 0.76 | 0.37–1.55 | 0.75 | 0.33–1.71 |
Student status (age 18–25) c |  |  |  |  |  |
   College student | 4.57 | 1.10 | 0.67–1.81 |  |  |
   Nonstudent | 4.18 | 1.00 |  |  |  |
Insurance | Â | Â | Â | Â | Â |
   Public | 2.12 | 1.00 |  | 1.00 |  |
   Private | 1.69 | 0.80 | 0.42–1.51 | 0.79 | 0.40–1.58 |
ADHD status | Â | Â | Â | Â | Â |
   No dx w/meds lifetime | 1.53 | 1.00 |  | 1.00 |  |
   Meds in lifetime, but not past year. | 8.94 | 6.31 | 1.84–21.44 | 6.04 | 1.72–21.15 |
   Meds in past year | 25.57 | 22.08 | 9.53–51.18 | 9.95 | 2.55–38.85 |
Past-month binge alcohol use d | Â | Â | Â | Â | Â |
   No | 0.90 | 1.00 |  | 1.00 |  |
   Yes | 4.46 | 5.13 | 2.48–10.63 | 4.38 | 1.70–27.42 |
Past-year marijuana use | Â | Â | Â | Â | Â |
   No | 1.09 | 1.00 |  | 1.00 |  |
   Yes | 7.41 | 7.29 | 3.51–15.16 | 16.78 | 6.66–42.27 |
Past-year methamphetamine use | Â | Â | Â | Â | Â |
   No | 1.70 | 1.00 |  | 1.00 |  |
   Yes | 45.50 | 48.27 | 20.62–112.91 | 2.00 | 0.76–5.29 |
Past-year cocaine use | Â | Â | Â | Â | Â |
   No | 1.33 | 1.00 |  | 1.00 |  |
   Yes | 26.23 | 26.37 | 11.23–61.92 | 2.73 | 1.13–6.60 |