Multinomial regression model assessing characteristics by Hg, Pb, Cd, and As meconium levels.

Note:aaOR: adjusted odds ratio for parity, gestation (weeks) and with variables run simultaneously; Hg, Pb, Cd and As meconium levels below the first quartile are the reference groups.As (µg/kg): Q1: 0–23.5 (reference); Q2: 23.6–36.6; Q3: 36.7–52.0; Q4: >52.1.Cd (µg/kg): Q1: 0–3.7 (reference); Q2: 3.8–7.3; Q3: 7.4–14.9; Q4: >15.0.Pb (µg/kg): Q1: 0–11.2 (reference); Q2: 11.3–19.4; Q3: 19.5–34.9; Q4: >35.0.Hg (µg/kg): Q1: 0–62.2 (reference); Q2: 62.3–82.6; Q3: 82.7–105.8; Q4: >105.9.Multinomial regression model assessing characteristics by Hg, Pb, Cd, and As meconium levels.