| 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 | −188.2 (−192.1, −184.3) | 2.15 (2.06, 2.23) | 2.20 (2.14, 2.26) | 1.46 (1.43, 1.51) |
  Hispanic | −47.3 (−52.3, −42.4) | 0.99 (0.93, 1.05) | 1.22 (1.18, 1.27) | 0.78 (0.75, 0.81) |
% Maternal education (years) | ||||
  <9 | −28.6 (−35.4, −21.8) | 1.17 (1.08, 1.26) | 1.15 (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 | 31.1 (26.7, 35.5) | 0.72 (0.68, 0.76) | 0.72 (0.70, 0.75) | 0.78 (0.75, 0.80) |
% Household median income | ||||
  Low | −7.6 (−12.6, −2.6) | 1.04 (1.00, 1.09) | 1.03 (1.00, 1.07) | 1.01 (0.98, 1.04) |
  Moderate | Reference | Reference | Reference | Reference |
  High | 10.0 (5.4, 14.6) | 0.92 (0.88, 0.96) | 0.94 (0.81, 0.97) | 0.90 (0.87, 0.93) |
  O3 per IQR increase | −7.4 (−9.5, −5.2) | 1.06 (1.03, 1.09) | 1.04 (1.03, 1.06) | 1.02 (0.99, 1.04) |