Table 4.
Mean difference (95% CI) in birth outcomes by geographic WTC proximity exposure categories before and after adjustment for chemical principal components (PCs) and maternal demoralization.
| Model 1 | Model 1 + PC1 | Model 1 + PC2 | Model 1 + PC3 | Model 1 + PC4 | Model 1 + Demoralization | |
|---|---|---|---|---|---|---|
| Birth Weight | ||||||
| Live/work <2 miles | −155.9 (−336.7, 25.0) | −163.0 (−338.2, 12.1) | −154.8 (−336.5, 26.8) | −107.7 (−287.5, 72.1) | −164.3 (−346.5, 17.9) | −143.6 (−326.0, 38.7) |
| Live <2 miles | −215.2 (−416.2, −14.3) | −214.9 (−409.7, −20.2) | −221.9 (−424.3, −19.4) | −156.4 (−358.2, 45.4) | −221.9 (−423.8, −20.0) | −209.5 (−410.4, −8.63) |
| Birth Length | ||||||
| Live/work <2 miles | −0.32 (−1.36, 0.72) | −0.32 (−1.37, 0.73) | −0.31 (−1.35, 0.73) | −0.07 (−1.11, 0.97) | −0.26 (−1.3, 0.79) | −0.26 (−1.31, 0.79) |
| Live <2 miles | −1.47 (−2.6, −0.34) | −1.47 (−2.61, −0.34) | −1.53 (−2.67, −0.4) | −1.21 (−2.36, −0.06) | −1.43 (−2.56, −0.29) | −1.45 (−2.58, −0.32) |
Model 1 adjusted for maternal race, age, parity, Medicaid status, pregnancy complications, and child sex.