Table I.
Maternal and infant demographics by race, ethnicity, and nativity
| Demographics | US-born NHW | US-born NHB | US-born HW | US-born HB | Foreign-born NHW | Foreign-born NHB | Foreign-born HW | Other |
|---|---|---|---|---|---|---|---|---|
| n = 328 513 | n = 61 589 | n = 8179 | n = 11 913 | n = 11 260 | n = 7348 | n = 2804 | n = 77 653 | |
| Maternal age, y, mean (SD) | 28.8 (5.6) | 25.7 (5.9) | 26.1 (5.9) | 24.4 (5.4) | 30.6 (5.3) | 30.3 (5.8) | 29.5 (5.9) | 27.4 (6.2) |
| Married, % | 66.1 | 16.8 | 38.7 | 18.0 | 87.1 | 39.9 | 36.0 | 51.8 |
| Insurance type, % | ||||||||
| Public | 24.4 | 61.8 | 51.6 | 63.6 | 23.7 | 42.0 | 33.6 | 47.0 |
| Private | 69.9 | 30.2 | 40.5 | 27.6 | 68.9 | 47.2 | 40.7 | 41.2 |
| Uninured/other | 5.7 | 8.1 | 7.9 | 8.9 | 7.4 | 10.8 | 25.7 | 11.9 |
| Education, % | ||||||||
| None or some high school | 8.1 | 17.8 | 21.3 | 24.2 | 4.5 | 12.9 | 32.4 | 23.6 |
| High school diploma | 23.4 | 37.5 | 31.3 | 34.7 | 15.4 | 27.9 | 23.7 | 27.9 |
| At least some college | 68.4 | 44.3 | 47.2 | 40.5 | 79.6 | 57.8 | 43.1 | 46.5 |
| Unknown | 0.2 | 0.5 | 0.3 | 0.6 | 0.5 | 1.4 | 0.9 | 2.0 |
| Tobacco use, % | 24.7 | 20.8 | 24.4 | 24.6 | 9.9 | 6.1 | 5.9 | 15.0 |
HB, Hispanic Black; HW, Hispanic White; NHB, non-Hispanic Black; NHW, non-Hispanic White.
P values for all comparisons across columns for each row were <.001. Bonferroni correction level of significance for a P value set at .01.