Table 2.
Comparison of Baseline Characteristics of 1,253 Participants who Did and Did Not Complete Follow-up Assessments in Years 2, 3, and 4
| Year 2 | Year 3 | Year 4 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Completed | Did Not Complete | Completed | Did Not Complete | Completed | Did Not Complete | |||||||||||||
| % | Mean | SD | % | Mean | SD | % | Mean | SD | % | Mean | SD | % | Mean | SD | % | Mean | SD | |
| Sex (%Male) *** | 47.3 | 61.3 | 46.5 | 63.2 | 46.2 | 64.7 | ||||||||||||
| Race (% White) | 70.9 | 70.3 | 70.7 | 71.5 | 70.3 | 74.2 | ||||||||||||
| Mother’s education (% with graduate degree) | 35.5 | 37.6 | 36.2 | 31.6 | 35.6 | 35.8 | ||||||||||||
| Combined SAT score | 1267.9 | 119.7 | 1276 | 117.4 | 1269.5 | 119.7 | 1262.7 | 118.1 | 1268.3 | 118.4 | 1271.1 | 127.3 | ||||||
| Importance of religion | ||||||||||||||||||
| Not important * | 24.8 | 36.9 | 24.9 | 33.6 | 24.9 | 33.3 | ||||||||||||
| Slightly important | 24.1 | 23.4 | 24.8 | 19.1 | 24.8 | 19.2 | ||||||||||||
| Moderately important | 31.3 | 27 | 31.1 | 29.6 | 30.7 | 32.1 | ||||||||||||
| Extremely important | 19.7 | 12.6 | 19.3 | 17.8 | 19.6 | 15.4 | ||||||||||||
| ADHD (% with current diagnosis) | 3.6 | 5.4 | 3.9 | 2.6 | 3.9 | 2.6 | ||||||||||||
| Beck Depression Inventory Score | 5.4 | 5.2 | 5.3 | 5.5 | 5.4 | 5.2 | 5.3 | 5.4 | 5.4 | 5.2 | 5 | 5.3 | ||||||
| Beck Anxiety Inventory Score | 7.6 | 7 | 8.2 | 8.8 | 7.5 | 7 | 8.3 | 8.3 | 7.6 | 6.9 | 8.2 | 8.6 | ||||||
| Center for Epidemiologic Studies Depression Score | 10.7 | 7.5 | 12.1 | 9.7 | 10.7 | 7.6 | 11.8 | 8.5 | 10.7 | 7.5 | 11.5 | 9.1 | ||||||
| # of illicit drugs ever used ** | 1.4 | 1.6 | 1.7 | 1.7 | 1.4 | 1.5 | 2 | 2.1 | 1.4 | 1.5 | 2 | 2 | ||||||
| Typical # of drinks per drinking day a, *** | 4.8 | 2.7 | 5.6 | 3 | 4.8 | 2.7 | 5.6 | 3 | 4.8 | 2.6 | 5.5 | 3.3 | ||||||
| Age at first alcohol intoxication b | 15.7 | 1.7 | 15.6 | 1.6 | 15.6 | 1.7 | 15.7 | 1.6 | 15.6 | 1.7 | 15.7 | 1.6 | ||||||
| Alcohol use disorder | 26.6 | 28.8 | 26.7 | 27.6 | 26.9 | 26.3 | ||||||||||||
| Cannabis use disorder | 14.5 | 17.4 | 14.7 | 15.3 | 14.3 | 18.2 | ||||||||||||
a
Restricted to individuals who drank alcohol at least once in their lifetime.
b
Restricted to individuals who were drunk on alcohol at least once in their lifetime.
*
Denotes statistically significant differences between completers and non-completers in Year 2 (α =.05).
**
Denotes statistically significant differences between completers and non-completers in Years 3 and 4 (α=.05).
***
Denotes statistically significant differences between completers and non-completers in Years 2 through 4 (α =.05).