TABLE 3.

Adjusted Odds Ratios (OR) for Medically Prescribed Use of Stimulant Medication, 2003

		Lifetime		Past Year
	N = 8,362	Odds Ratios	95% CI	Odds Ratios	95% CI
Gender
Male	3,596	1.00	reference	1.00	reference
Female	4,766	0.67***	0.52–0.86	0.86	0.63–1.16
Race
White	5,749	1.00	reference	1.00	reference
African American	513	0.30**	0.13–0.71	0.33*	0.11–0.97
Hispanic	356	1.19	0.71–1.98	1.09	0.57–2.09
Asian	1,026	0.38**	0.22–0.66	0.38*	0.18–0.79
Other	718	0.97	0.63–1.47	1.15	0.80–1.90
Class year
Freshmen	1,319	1.00	reference	1.00	reference
Sophomore	2,022	0.84	0.57–1.23	0.71	0.43–1.16
Junior	2,219	1.10	0.80–1.50	1.13	0.76–1.67
Senior	2,769	1.04	0.64–1.69	1.02	0.56–1.85
Other	33	1.12	0.15–8.54	****	****
Living arrangement
Residence hall	3,741	1.00	reference	1.00	reference
Fraternity/sorority	403	1.08	0.62–1.91	1.09	0.56–2.10
House/apartment	3,926	1.21	0.85–1.71	0.99	0.64–1.54
Outside city and other	292	1.06	0.49–2.29	0.56	0.17–1.89
Fraternity/sorority status
Non-member	7,248	1.00	reference	1.00	reference
Member	1,114	1.77***	1.26–2.49	1.93***	1.29–2.89
Annual family income
Less than $50,000	1,028	1.00	reference	1.00	reference
$50,000 – $99,999	2,009	0.58*	0.35–0.95	0.56	0.27–1.14
$100,000 – $149,999	1,674	0.87	0.54–1.41	1.35	0.71–2.54
$150,000 – $249,999	1,058	1.12	0.68–1.85	1.67	0.87–3.22
More than $250,000	763	1.56	0.95–2.56	2.24*	1.17–4.32
Don’t know or refused	1,830	1.32	0.85–2.08	1.48	0.80–2.77
Religious affiliation
Catholic	2,234	1.00	reference	1.00	reference
Jewish	764	2.45***	1.67–3.60	2.84***	1.80–4.47
Presbyterian	343	1.23	0.63–2.38	1.34	0.62–2.93
Episcopal	159	1.92	0.92–3.99	1.83	0.75–4.45
Protestant	727	1.02	0.59–1.74	0.88	0.44–1.78
Christian reformed	148	0.55	0.13–2.27	****	****
Baptist	236	1.19	0.45–3.13	1.05	0.30–3.65
Interdenominational	530	0.73	0.35–1.55	0.75	0.29–1.93
Muslim	134	0.36	0.05–2.62	****	****
None	1,984	1.68**	1.19–2.37	1.50	0.96–2.32
Other	945	1.27	0.79–2.04	1.28	0.71–2.30
Refused	158	0.70	0.22–2.29	0.38	0.05–2.83
Cumulative GPA
3.5 or higher	2,837	1.00	reference	1.00	reference
3.0 to 3.4	3,199	1.79**	1.27–2.51	2.34***	1.49–3.69
2.5 to 2.9	1,567	3.28***	2.28–4.72	4.24***	2.61–6.88
Below 2.5	759	4.10***	2.68–6.27	6.83***	3.99–11.69

Note: Sample sizes are based on lifetime model.

^*p < 0.05.

^**p < 0.01.

^***p < 0.001.

^****Sample size of particular cell was too small to produce reliable odds ratio.