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Table 1 Sample characteristics of 2005 ADHD diversion study

From: The nonmedical use of prescription ADHD medications: results from a national Internet panel

  Sample n Sample Percent Weighted Percenta SE
Age     
   18–25 3,307 76.96 24.19 1.10
   26–49 990 23.04 75.81 1.10
Sex     
   Male 1,857 43.22 49.46 1.95
   Female 2,440 56.78 50.54 1.95
Race/ethnicity     
   White, not Hispanic 3,294 76.66 65.59 1.95
   Black, not Hispanic 278 6.47 12.28 1.23
   Other, not Hispanic 354 8.24 6.75 1.04
   Hispanic 371 8.63 15.37 1.69
Education     
   Some high school 399 9.29 16.55 2.24
   High school graduate 952 22.15 31.06 1.70
   Some college 1,966 45.75 26.86 1.43
   College graduate 980 22.81 25.53 1.47
Student status (ages 18–25)     
   Student 1,646 49.77 39.50 1.58
   Nonstudent 1,661 50.23 60.50 1.58
Insurance     
   Private/public 3,351 79.26 75.71 2.01
   None 877 20.74 24.29 2.01
ADHD status     
   No lifetime diagnosis 4,069 94.69 96.85 0.40
   Lifetime diagnosis, no medications in past year 134 3.12 1.67 0.28
   Medications in past yearb 90 2.09 1.41 0.28
  1. ADHD = attention deficit hyperactivity disorder.
  2. a Weighted to the U.S. population of noninstitutionalized civilian adults aged 18–49.
  3. b Excludes four respondents who reported fabricating symptoms or obtaining medications from a doctor "who didn't ask too many questions" in the past year.