Table 3.
Unadjusted and adjusted odds ratios (95% confidence interval) for preterm delivery among foreign-born non-Hispanic black mothers (n=114,750).
| Unadjusteda | Model 1a: residential segregation and political power | Model 2a: adjustment for city-level variables | Model 3a: adjustment for maternal characteristics | |
|---|---|---|---|---|
| City-level variables | ||||
| NHB-NHW dissimilarity index | 1.05 (1.01, 1.09) | 1.05 (1.01, 1.08) | 1.06 (1.02, 1.09) | 1.05 (1.01, 1.08) |
| Black political power | 1.05 (0.99, 1.12) | 1.03 (0.97, 1.09) | 1.03 (0.97, 1.09) | 1.03 (0.97, 1.08) |
| Poverty rateb | 1.00 (1.00, 1.01) | 1.00 (1.00, 1.00) | 1.00 (1.00, 1.00) | |
| % population > 25 college gradb | 0.99 (0.98, 1.00) | 0.98 (0.98, 0.99) | 1.00 (0.98, 0.99) | |
| Individual-level variables | ||||
| Maternal age | 1.02 (1.01, 1.02) | 1.03 (1.02, 1.03) | ||
| Maternal education | ||||
| Less than high school | 1.40 (1.29, 1.52) | 1.45 (1.33, 1.58) | ||
| Some high school | 1.17 (1.11, 1.22) | 1.19 (1.13, 1.25) | ||
| High school/GED | 1.19 (1.12, 1.25) | 1.21 (1.13, 1.29) | ||
| Some college | 1.37 (1.28, 1.47) | 1.42 (1.33, 1.51) | ||
| College graduate | (ref) | (ref) | ||
| Marital status | ||||
| Unmarried | 1.19 (1.14, 1.24) | 1.23 (1.18, 1.28) | ||
| Married | (ref) | (ref) | ||
| Parity | ||||
| Primiparous | 0.98 (0.95, 1.02) | 1.10 (1.04, 1.15) | ||
| Multiparous | (ref) | (ref) |
a
Unadjusted models for residential segregation and political representation include controls for Census region and log total population size; unadjusted models for residential segregation as well as Models 1–3 include percent NHB population.
b
Odds ratio per 1-unit increase in %poverty and %population > 25 college graduate.