Table 1.
Demographics and past-year substance use characteristics for participants reporting drugged driving versus not reporting drugged driving and high frequency drugged driving versus lower frequency drugged driving
| Total Sample N= 586 % (N) or M (SD) |
No Drugged Driving N = 448 % (N) or M (SD) |
Any Drugged Driving N = 138 % (N) or M (SD) |
Lower Frequency Drugged Driving N = 103 % (N) or M (SD) |
High Frequency Drugged Driving N = 35 % (N) or M (SD) |
|
|---|---|---|---|---|---|
| Demographics | |||||
| Age | 21.7 (2.3) | 21.6 (2.4) | 22.0 (2.2) | 22.0 (2.2) | 21.8 (2.2) |
| Male | 318 (54.3%) | 237 (52.9%) | 81 (58.7%) | 60 (58.3%) | 21 (60.0%) |
| African American | 326 (55.6%) | 261 (58.3%) | 65 (47.1%) | 47 (45.6%) | 18 (51.4%) |
| European American | 201 (34.3%) | 145 (32.4%) | 56 (40.6%) | 41 (39.8%) | 15 (42.9%) |
| Other | 59 (10.1%) | 42 (9.4%) | 17 (12.3%) | 15 (14.6%) | 2 (5.7%) |
| Married | 76 (13.0%) | 60 (13.4%) | 16 (11.6%) | 12 (11.7%) | 4 (11.4%) |
| Currently in school | 152 (21.0%) | 123 (27.5%) | 29 (21.0%) | 23 (22.3%) | 6 (17.1%) |
| Highest education | |||||
| Less than high school | 169 (28.8%) | 133 (29.7%) | 36 (26.1%) | 26 (25.2%) | 10 (28.6%) |
| High school/GED | 240 (41.0%) | 183 (40.9%) | 57 (41.3%) | 48 (46.6%) | 9 (25.7%) |
| Some college or more | 177 (30.2%) | 132 (29.5%) | 45 (32.6%) | 29 (28.2%) | 16 (45.7%) |
| Public assistance | 280 (47.8%) | 219 (48.9%) | 61 (44.2%) | 46 (44.7%) | 15 (42.9%) |
| Has children | 265 (45.2%) | 206 (46.0%) | 59 (42.8%) | 45 (43.7%) | 14 (40.0%) |
| Substance Misuse | |||||
| Cannabis frequencya | 1.5 (1.6) | 1.0 (1.4) | 3.0 (1.3) | 2.9 (1.3) | 3.3 (1.2) |
| Prescription opioid frequencya | 0.2 (0.6) | 0.1 (0.4) | 0.4 (0.8) | 0.3 (0.8) | 0.6 (1.1) |
| Prescription sedative frequencya | 0.2 (0.6) | 0.1 (0.5) | 0.4 (0.9) | 0.3 (0.8) | 0.5 (1.0) |
| Prescription stimulants frequencya | 0.2 (0.6) | 0.1 (0.4) | 0.4 (0.8) | 0.3 (0.8) | 0.5 (0.9) |
| Other drug usea,c | 66 (11.3%) | 25 (5.6%) | 41 (29.7%) | 26 (25.2%) | 15 (42.9%) |
| Tobacco usea | 321 (54.8%) | 217 (48.4%) | 104 (75.4%) | 75 (72.8%) | 29 (82.9%) |
| CRAFFT scorea,c | 1.6 (1.8) | 1.1 (1.5) | 3.1 (1.8) | 2.9 (1.8) | 3.7 (1.9) |
| AUDIT-C scoreb | 2.6 (2.8) | 2.2 (2.6) | 3.9 (2.8) | 3.8 (2.8) | 3.9 (3.0) |
Note. Drug use frequency variables included response options never, once or twice, monthly, weekly, daily/or almost daily (coded 0 to 4, respectively, for analyses). Other drugs (cocaine, methamphetamine, street opioids, hallucinogens, and inhalants) were combined into yes to any versus no due to lower frequency. For the three prescription drugs, participants were instructed to answer based on misuse, “to get high, or taking them when they were prescribed to someone else, or taking more than what was prescribed to you.” Scores ≥2 on the CRAFFT represent high-risk substance use.
p < .01 for DD versus no DD
p < .001 for DD versus no DD
p<.05 for High Frequency DD versus Lower Frequency DD.