| Birth weight | LBW | SGA | PTB |
---|---|---|---|---|
 | Change in grams (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) |
% Race/ethnicity | ||||
  NHW | Reference | Reference | Reference | Reference |
  NHB | −187.5 (−191.4, −183.6) | 2.13 (2.05, 2.22) | 2.18 (2.12, 2.24) | 1.46 (1.42, 1.50) |
  Hispanic | −46.8 (−51.7, −41.9) | 0.99 (0.93, 1.05) | 1.21 (1.17, 1.26) | 0.78 (0.75, 0.81) |
% Maternal education (years) | ||||
  <9 | −28.3 (−35.1, −21.5) | 1.17 (1.08, 1.26) | 1.14 (1.09, 1.20) | 1.04 (0.99, 1.10) |
  9-11 | −33.1 (−37.7, −28.5) | 1.19 (1.14, 1.25) | 1.15 (1.12, 1.19) | 1.08 (1.05, 1.12) |
  12 | Reference | Reference | Reference | Reference |
  13-15 | 18.5 (14.5, 22.5) | 0.82 (0.79, 0.86) | 0.85 (0.82, 0.87) | 0.98 (0.95, 1.01) |
  >15 | 31.6 (27.2, 36.0) | 0.72 (0.68, 0.75) | 0.72 (0.69, 0.75) | 0.78 (0.75, 0.80) |
% Household median income | ||||
  Low | −7.5 (−12.5, −2.5) | 1.04 (1.00, 1.08) | 1.04 (1.00, 1.07) | 1.01 (0.98, 1.04) |
  Moderate | Reference | Reference | Reference | Reference |
  High | 11.4 (6.4, 15.8) | 0.92 (0.88, 0.95) | 0.93 (0.90, 0.96) | 0.90 (0.87, 0.93) |
  PM2.5 per IQR increase | −3.13 (−3.34, −2.93) | 1.02 (0.99, 1.04) | 1.03 (1.02, 1.05) | 1.01 (0.99, 1.02) |