Table 2. Sample characteristics by nonmedical use of prescription stimulants (NPS) during the past six months.
| Total (N=6962) | No NPS (n=6180) | NPS (n=782) | |
|---|---|---|---|
| Race | |||
| % (n) White | 62.1 (4320) | 60.4 (3734) | 74.9 (586) |
| % (n) Asian | 19.5 (1358) | 20.6 (1275) | 10.6 (83) |
| % (n) Black or African-American | 9.9 (692) | 10.4 (645) | 6.0 (47) |
| % (n) Multiple or other races | 8.5 (592) | 8.5 (526) | 8.4 (66) |
| Gender: % (n) Male | 40.9 (2844) | 39.7 (2455) | 49.7 (389) |
| Ethnicity: % (n) Hispanic or Latino/a | 9.3 (644) | 9.1 (560) | 10.7 (84) |
| Perceived academic benefit of NPS | |||
| % (n) Strongly disagree | 13.6 (948) | 15.0 (929) | 2.4 (19) |
| % (n) Disagree | 19.7 (1372) | 21.3 (1319) | 6.8 (53) |
| % (n) Unsure | 38.0 (2648) | 39.6 (2446) | 25.8 (202) |
| % (n) Agree | 23.3 (1623) | 20.6 (1271) | 45.0 (352) |
| % (n) Strongly agree | 5.3 (371) | 3.5 (215) | 19.9 (156) |
| Mean (SD) perceived academic benefit score | 2.9 (1.1) | 2.8 (1.1) | 3.7 (0.9) |
| Mean (SD) total drinks per week | 6.9 (8.3) | 5.9 (7.4) | 15.0 (10.4) |
| Mean (SD) days used marijuana during the past six months | 10.8 (32.3) | 6.8 (24.8) | 42.9 (56.8) |
Note. Perceived academic benefit of NPS was scored 1 (strongly disagree) through 5 (strongly agree).