Table 1.
Summary statistics on subgroups in the final linked 4th-grade reading dataset for 100 counties in NC (N = 57,678).
| Variable | Subcategory | Avg. reading EOG | Proportion (%) |
||
|---|---|---|---|---|---|
| Overall | Black | White | |||
| Race | White | 254.6 | 56.9 | ||
| Black | 248.5 | 43.1 | |||
| Household income | Not enrolled in free/reduced lunch program | 255.3 | 47.1 | 21.2 | 66.8 |
| Enrolled in free/reduced lunch program | 249.0 | 52.9 | 78.8 | 33.2 | |
| Parental education | Completed graduate school | 260.1 | 3.5 | 0.9 | 5.4 |
| Completed college | 257.2 | 18.5 | 9.8 | 25.1 | |
| Some post-high school education | 252.7 | 24.6 | 23.7 | 25.2 | |
| Completed high school | 249.8 | 45.3 | 55.5 | 37.7 | |
| Some high school education | 246.5 | 8.1 | 10.1 | 6.6 | |
| Blood lead levels | BLL of 1 μg/dL | 254.4 | 6.7 | 3.7 | 8.8 |
| BLL of 2 μg/dL | 253.8 | 13.4 | 9.1 | 16.7 | |
| BLL of 3 μg/dL | 253.0 | 18.5 | 14.3 | 21.6 | |
| BLL of 4 μg/dL | 252.3 | 17.8 | 17.2 | 18.3 | |
| BLL of 5 μg/dL | 251.4 | 14.1 | 15.6 | 13.0 | |
| BLL of 6 μg/dL | 250.6 | 10.1 | 12.4 | 8.3 | |
| BLL of 7 μg/dL | 250.2 | 6.7 | 8.9 | 5.0 | |
| BLL of 8 μg/dL | 249.6 | 4.1 | 5.9 | 2.8 | |
| BLL of 9 μg/dL | 249.8 | 2.5 | 3.6 | 1.8 | |
| BLL of 10 μg/dL or higher | 248.7 | 6.1 | 9.3 | 3.7 | |