Table 1.
Baseline characteristics of the study sample that participated in the extended follow up, compared to those that did not.
| Variable | “In study” group1 (n=2613) | “Not in study” group1 (n=2194) | p-value2 |
|---|---|---|---|
| Gender | 0.657 | ||
| Male | 207 (79.3%) | 170 (77.6) | |
| Female | 54 (20.7%) | 49 (22.4) | |
| Race/Ethnicity | 0.544 | ||
| Hispanic | 119 (45.6) | 94 (42.9) | |
| Non-Hispanic White | 84 (32.2) | 64 (29.2) | |
| Non-Hispanic Black | 54 (20.7) | 56 (25.6) | |
| Other | 4 (1.5) | 5 (2.3) | |
| Age (at baseline) | 16 (15, 17) | 16 (15, 17) | 0.310 |
| % drug days | 11 (0, 40) | 7 (0, 27) | 0.253 |
| Externalizing Behavior5 | 0.078 (3.183) | −0.128 (3.043) | 0.470 |
| Number of Arrests | 1 (0, 2) | 1 (0, 2) | 0.431 |
| Number of Juvenile Detentions | 1 (0, 1) | 1 (0, 1) | 0.967 |
| Family Functioning6 | −0.196 (5.806) | 0.071 (5.475) | 0.604 |
For categorical variables, N (%). For continuous variables, Means (SD) for approximately normal variables and Median (Q1, Q3) otherwise.
For categorical variables, Fisher’s exact test p-values. For continuous variables, T-tests p-values for approximately normal variables and Wilcoxon two sample p-values otherwise.
Except for % drug days (n=258), number of arrests (n=260), and number of juvenile detentions (n=207).
Except for % drug days (n=218) and number of juvenile detentions (n=170).
The reported value for externalizing is the mean of the square root of the raw score.
The reported value for family functioning is the mean of the composite created for this outcome.