Table 4 Difference in birth weight associated with prenatal PM2.5 exposures among the ECLS-B study population, crude and adjusted models
| Â | Crude | Model 5 | Model 6 | Model 7 | Model 8 |
|---|---|---|---|---|---|
(No race) | (Maternal race only) | (Paternal race and age only) | (Maternal and paternal race) | ||
Parameter | Birth Weight (grams) | Birth Weight (grams) | Birth Weight (grams) | Birth Weight (grams) | Birth Weight (grams) |
β Estimate (95% CI) | β Estimate (95% CI) | β Estimate (95% CI) | β Estimate (95% CI) | β Estimate (95% CI) | |
PM2.5 | |||||
  Trimester 1 | 0.7 (-3.3—4.6) | 0.4 (-3.5, 4.3) | 0.8 (-3.2, 4.9) | 0.5 (-3.5, 4.5) | 0.8 (-3.2, 4.8) |
  Trimester 2 | -1.1 (-5.2, 3.0) | -1.0 (-4.8, 2.9) | -0.1 (-3.8, 3.6) | -0.6 (-4.4, 3.1) | -0.04 (-3.8, 3.7) |
  Trimester 3 | -2.4 (-5.8, 1.1) | -1.9 (-5.2, 1.5) | -0.7 (-4.0, 2.6) | -1.2 (-4.5, 2.2) | -0.7 (-4.0, 2.6) |
  Whole Pregnancy | -2.1 (-6.1, 2.0) | -2.0 (-6.01, 2.07) | -0.7 (-4.6, 3.1) | -1.2 (-5.2, 2.7) | -0.7 (-4.6, 3.1) |