Relative risk of low birth weight (<2500 g) among cohort mothers, adjusting for age group and race
| Variables in model |
All county births (model 1) | All non-Medicaid county births (model 2) | County Medicaid births only (model 3) |
| Cohort v county3-150 | 0.59 (0.46, 0.73) | 0.65 (0.50, 0.85) | 0.44 (0.34, 0.57) |
| Blackv other3-150 | 2.03 (1.86, 2.21) | 2.03 (1.80, 2.29) | 1.59 (1.40, 1.79) |
| Age group | |||
| 15–193-150 | 1.0 | ||
| 20–24 | 0.83 (0.70, 0.98) | 0.71 (0.49, 1.01) | 0.89 (0.74, 1.08) |
| 25–29 | 0.82 (0.70, 0.96) | 0.76 (0.54, 1.06) | 0.98 (0.81, 1.19) |
| 30–34 | 0.82 (0.70, 0.96) | 0.75 (0.53, 1.05) | 1.14 (0.93, 1.40) |
| 35–39 | 0.82 (0.69, 0.97) | 0.76 (0.53, 1.07) | 1.12 (0.86, 1.44) |
| 40–44 | 1.24 (0.97, 1.58) | 1.13 (0.76, 1.70) | 1.61 (1.06, 2.45) |
↵3-150 Indicates reference group.