Table 1.

Sample characteristics among the overall sample.

	Overall Sample (N = 3,383)
Age, M (SD)	14.1 (0.42)
Gender, %
Female	53.0%
Male	46.2%
Ethnicity, %
American Indian/Alaska Native	0.9%
Asian	15.8%
Black/African American	4.9%
Hispanic or Latino	45.9%
Native Hawaiian/Pacific Islander	3.3%
White	15.3%
Other	5.6%
Multiracial	5.9%
Highest parental education, %
High school graduate or less	25.8%
Some college or more	60.5%
RCADS- MDD, M (SD)/α	7.8 (7.0)/.93
RCADS- GAD Symptoms, M (SD)/α	8.1 (4.7)/.89
RCADS- PD Symptoms, M (SD)/α	4.4 (5.3)/.92
RCADS- SP Symptoms, M (SD)/α	11.9 (7.3)/.90
RCADS- OCD Symptoms, M (SD)/α	4.4 (3.9)/.82
CPs, M (SD)/α	15.8 (5.5)/.79
Substance Use, Past six-month use at Follow-Up/Baseline/Baseline Lifetime, %
Any Substance	37.2%/26.2%/40.2%
Alcohol	21.1%/14.3%/26.1%
Marijuana	14.5%/9.1%/15.3%
Tobacco	28.2%/19.6%/29.5%

Note. Data from ninth grade students in Los Angeles, California, USA collected in 2013–2014. CP = Conduct Problems; RCADS = Revised Children’s Anxiety And Depression Scale; MDD =Major Depressive Disorder; GAD = Generalized Anxiety Disorder; PD = Panic Disorder; SP = Social Phobia; OCD = Obsessive-Compulsive Disorder