Table 2.
Variable | N | Mean | Min. | Max. | IQR2 | Missing | ||
---|---|---|---|---|---|---|---|---|
LEVEL 2 | Total RR (ln) | 58 | 0.62 | 0.39 | 0.05 | 1.93 | 0.61 | 0 |
Total RR1 | 58 | 2.01 | 0.96 | 1.05 | 6.88 | 1.16 | 0 | |
On Road RR (ln) | 58 | −0.57 | 0.76 | −1.51 | 1.68 | 1.33 | 0 | |
On Road RR1 | 58 | 0.78 | 0.80 | 0.22 | 5.39 | 0.84 | 0 | |
Non Road RR (ln) | 58 | −1.78 | 0.52 | −3 | −0.49 | 0.57 | 0 | |
Non Road RR1 | 58 | 0.19 | 0.11 | 0.05 | 0.61 | 0.10 | 0 | |
Total Diesel PM (ln) | 58 | 0.08 | 0.67 | −0.8 | 2.07 | 1.16 | 0 | |
Total Diesel PM1 | 58 | 1.39 | 1.21 | 0.45 | 7.93 | 1.39 | 0 | |
On Road Diesel PM (ln) | 58 | −0.27 | 0.77 | −1.24 | 2.01 | 1.36 | 0 | |
On Road Diesel PM1 | 58 | 1.07 | 1.11 | 0.29 | 7.49 | 1.16 | 0 | |
Non Road Diesel PM (ln) | 58 | −1.24 | 0.58 | −2.41 | 0.85 | 0.59 | 0 | |
Non Road Diesel PM1 | 58 | 0.35 | 0.33 | 0.09 | 2.34 | 0.16 | 0 | |
Total School Enrollment | 58 | 546 | 129 | 273 | 840 | 192.25 | 0 | |
% Free/Reduced Price Meals | 58 | 74.06 | 22.77 | 15.43 | 99.43 | 39.65 | 0 | |
Student/Teacher Ratio | 58 | 20.21 | 1.8 | 15.68 | 23.73 | 2.41 | 0 | |
% Special Education | 58 | 10.97 | 4.87 | .266 | 27.02 | 4.89 | 0 | |
% Teachers with MA Degree | 58 | 24.45 | 17.46 | 0 | 66.5 | 23.96 | 0 | |
| ||||||||
LEVEL 1 | Child Sex | 1828 | 0.5 | 0.5 | 0 | 1 | n/a | 3.2 |
Child Age | 1856 | 10.39 | 0.77 | 8 | 13 | 1 | 1.7 | |
Free/Reduced Price Meals | 1650 | 0.60 | 0.49 | 0 | 1 | n/a | 12.6 | |
Teen Mother | 1625 | 0.09 | 0.28 | 0 | 1 | n/a | 13.9 | |
Mother’s Education | 1685 | 13.07 | 3.88 | 1 | 21 | 4 | 10.8 | |
Mother is Hispanic | 1666 | 0.8 | 0.4 | 0 | 1 | n/a | 11.8 | |
Mother is Black | 1694 | 0.02 | 0.15 | 0 | 1 | n/a | 10.3 | |
Mother’s English Proficiency | 1649 | 2.17 | 1.03 | 0 | 3 | 2 | 12.7 | |
Child’s GPA | 1683 | 3.32 | 0.66 | 0.2 | 4 | 1 | 10.9 |
This variable was not used in the statistical models, since a natural log transformation was needed to reduce skewness and kurtosis. It is included here since the values are more meaningful when interpreted than the transformed version.
Interquartile range, n/a= not applicable to dichotomous variables