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. 2015 Mar 10;10(3):e0119965. doi: 10.1371/journal.pone.0119965

Table 4. Descriptive statistics of covariates.

12 small schools (n = 1,284) Jefferson High (n = 976)
In-School Survey Female (%) 50.93 48.46
Grade level (%)
 7th grade 23.99 0.00
 8th grade 24.92 0.00
 9th grade 14.25 28.79
 10th grade 12.69 28.38
 11th grade 12.00 21.82
 12th grade 12.15 21.00
Parent education level (%)
 Less than high school 6.70 5.02
 High school 38.86 38.22
 Some college or trade school 30.84 37.09
 Graduate of college/university 23.60 19.67
Depressive symptoms, mean (SD) -0.12 (0.46) 0.01(0.53)
Parent Survey Parental support, mean (SD) 0.06 (0.25) -0.05(0.29)
Parental monitoring, mean (SD) 0.02 (0.12) -0.04(0.10)
Parental home drinking environment, mean (SD) 0.87 (0.78) 1.19(0.73)