| No. (%) or Mean ± SD | ||
---|---|---|---|
Lagged Restrictiveness Index | Preterm Birth | Low Birthweight | |
Overall Sample | 7.0 ± 4.0 | 269,253 (12.0) | 182,960 (8.1) |
Race/ethnicity (categorical) | *** | *** | *** |
 American Indian / Alaska Native (non-Hispanic) (n = 22,541) | 7.0 ± 4.1 | 2985 (13.3) | 1645 (7.3) |
 Asian American / Pacific Islander (non-Hispanic) (n = 136,921) | 4.6 ± 3.7 | 14,141 (10.4) | 11,260 (8.2) |
 Black (non-Hispanic) (n = 332,437) | 7.4 ± 3.3 | 57,138 (17.2) | 44,998 (13.5) |
 Hispanic/Latinx (n = 532,442) | 5.3 ± 3.7 | 62,330 (11.8) | 37,210 (7.0) |
 White (non-Hispanic) (n = 1,225,658) | 7.1 ± 3.7 | 132,659 (10.8) | 87,847 (7.2) |
Race/ethnicity (dichotomous) | *** | *** | *** |
 Black (non-Hispanic) (n = 332,437) | 7.4 ± 3.3 | 57,138 (17.2) | 44,998 (13.5) |
 Non-Black (n = 1,917,563) |  |  |  |
Education | *** | *** | *** |
 Less than high school graduate (n = 404,170) | 6.3 ± 3.7 | 55,627 (13.8) | 36,719 (9.1) |
 High school graduate (n = 569,822) | 6.7 ± 3.7 | 73,065 (12.9) | 50,343 (8.8) |
 Some college (n = 568,116) | 6.8 ± 3.8 | 67,046 (11.8) | 45,138 (8.0) |
 College graduate (n = 602,021) | 6.5 ± 3.7 | 60,162 (10.0) | 41,195 (6.9) |