Table 1.
Maternal socio-demographics for participants with recumbent length/height and weight for preterm birth through 18 years
| Demographics (No. participants providing maternal data) | Cohorts/sub-cohorts providing data | No. participants (%) |
|---|---|---|
| Overall | 70 | 37,603 (100) |
| Maternal marital status (n = 30,470)a | 50 | |
| Married or cohabitating | 21,096 (69) | |
| Not married or cohabitating | 6726 (22) | |
| Race (n = 34,260)b | 63 | |
| Non-Hispanic | ||
| White | 15,951 (46) | |
| Black | 4745 (14) | |
| Asian | 2188 (6) | |
| Other | 3773 (11) | |
| Hispanic | 7603 (22) | |
| Primary language spoken at home (n = 19,555)c | 45 | |
| English | 15,159 (77) | |
| Spanish | 1668 (9) | |
| Other | 472 (2) | |
| Mother’s education (n = 28,679)d | 64 | |
| <12th grade, no diploma | 4202 (12) | |
| High school graduate/GED or higher | 28,874 (80) | |
| Maternal health insurance coverage (n = 28,663)e | 41 | |
| None | 568 (2) | |
| Private plan | 17,962 (63) | |
| Medicaid | 7241 (25) | |
| Other (military, Medicare) | 1970 (7) | |
| Preterm birth (n = 3,440)f | ||
| Small for gestational age | 10.6 (8.8, 12.3) | |
| Large for gestational age | 7.9 (5.2, 10.6) |
a
Marital status missing: n = 2648 (9%)
b
Race/ethnic origin missing: n = 0 (0%)
c
Primary language missing: n = 2256 (12%)
d
Education missing: n = 3154 (9)%
e
Health insurance missing: n = 922 (3%)
f
Point estimate, 95% confidence interval; weight-for-gestational age z-scores: small for gestational age: <10th percentile; large for gestational age: >90th percentile of the Fenton sex-specific growth charts, respectively [59].