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Study sample characteristics at baseline.
| Characteristics | (N=555) n (%) | Mean (SD) | |
| Age | 15.73 (1.0) | ||
| Gender | |||
| Male | 230 (41.4) | ||
| Female | 325 (58.6) | ||
| Grade | |||
| 9th | 404 (72.8) | ||
| 10th | 151 (27.2) | ||
| Survey language | |||
| English | 393 (70.8) | ||
| Spanish | 162 (29.2) | ||
| Length of time in the United States | |||
| US born (0) | 268 (48.3) | ||
| 0-3 years (1) | 136 (24.5) | ||
| 4-10 years (2) | 102 (18.4) | ||
| 10+ years (3) | 27 (4.9) | ||
| Missing | 22 (3.9) | ||
| Parental Monitoring (alpha =.85) range 1-4 | 3.058 (0.7) | ||
