Table 1.
Sample characteristics and differences between adolescents who did and did not endorse lifetime nonmedical use of prescription stimulants or analgesics.
| Stimulants | Analgesics | |||||
|---|---|---|---|---|---|---|
| Full Sample (N = 250) % (n)a |
Use (N = 24) % (n)b |
χ2 | Full Sample (N = 250) % (n)a |
Use (N = 26) % (n)b |
χ2 | |
| Gender | 9.4** | 6.3* | ||||
| Male | 46.4 (116) | 3.5 (4) | 46.4 (116) | 5.2 (6) | ||
| Female | 53.6 (134) | 14.9 (20) | 53.6 (134) | 14.9 (20) | ||
| Ethnicity | 1.8 | 0.83 | ||||
| White | 76.4 (191) | 11.0 (21) | 76.4 (191) | 9.4 (18) | ||
| Non-white | 23.6 (59) | 5.1 (3) | 23.6 (59) | 13.6 (8) | ||
| Grade | 8.6* | 0.98 | ||||
| 9th | 25.2 (63) | 4.8 (3) | 25.2 (63) | 7.9 (5) | ||
| 10th | 25.2 (63) | 4.8 (3) | 25.2 (63) | 9.5 (6) | ||
| 11th | 24.4 (61) | 18.0 (11) | 24.4 (61) | 13.1 (8) | ||
| 12th | 25.2 (63) | 11.1 (7) | 25.2 (63) | 11.1 (7) | ||
| Parent education | 0.04 | 8.8** | ||||
| College or less | 35.2 (88) | 9.1 (8) | 35.2 (88) | 18.2 (16) | ||
| Graduate or professional |
64.8 (162) |
9.9 (16) | 64.8 (162) | 6.2 (10) | ||
|
Lifetime use of alcohol or marijuana |
56.6 (141) |
16.3 (23) | 16.6*** | 56.6 (141) | 17.7 (25) | 18.5*** |
a
Percentages are calculated within column.
b
Percentages are calculated within row.
c
N = 249
*
p < .05.
**
p < .01.
***
p < .001. Note. Significant omnibus χ2 tests are boldfaced.