Table 1.
Descriptive statistics by self-reported maternal racial group.
| Black |
White |
|
|---|---|---|
| Variables | % | % |
| Maternal age categories | ||
| ≤19-years-old | 9.5 | 4.3 |
| 20–24 years | 32.2 | 19.1 |
| 25–29 years | 29.3 | 30.5 |
| 30–34 years | 18.4 | 30.4 |
| ≥35 years | 10.6 | 15.8 |
| Parity | ||
| Primiparous | 37.3 | 40.6 |
| 2 | 28.5 | 33.3 |
| 3-5 | 30.6 | 24.3 |
| 6+ | 3.5 | 1.8 |
| Prior preterm birth | 4.5 | 2.9 |
| Infant sex (% female) | 49.2 | 48.7 |
| Maternal educationa | ||
| No high school diploma | 15.1 | 7.6 |
| High school diploma/GED | 35.5 | 21.6 |
| Some college, no Bachelor's | 35.0 | 30.9 |
| Bachelor's degree or higher | 13.6 | 39.4 |
| Marital statusa | ||
| Married | 22.4 | 68.8 |
| Unmarried, paternity acknowledgment | 43.5 | 22.3 |
| Unmarried, no paternity acknowledgment | 32.6 | 7.3 |
| Insurance at deliverya | ||
| Private | 25.9 | 62.4 |
| Medicaid | 68.5 | 30.6 |
| Self-pay | 1.5 | 2.7 |
| Other | 3.5 | 3.6 |
| Smoking during pregnancy | 7.2 | 11.5 |
| Preterm birth | 12.2 | 7.1 |
| Small-for-gestational-age birth | 10.3 | 4.7 |
a
Category ‘unknown’ not shown in table.