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

Table 1 Sample characteristics of 2005 ADHD diversion study

	Sample n	Sample Percent	Weighted Percent^a	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 year^b	90	2.09	1.41	0.28

ADHD = attention deficit hyperactivity disorder.
^a Weighted to the U.S. population of noninstitutionalized civilian adults aged 18–49.
^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.

ISSN: 1747-597X