Table 3. Multinomial regression model assessing characteristics by Hg, Pb, Cd, and As meconium levels.
| Variable | Hg | Pb | Cd | As | ||||||||||||||||||||
| Q2 | Q3 | Q4 | Q2 | Q3 | Q4 | Q2 | Q3 | Q4 | Q2 | Q3 | Q4 | |||||||||||||
| OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| Maternal age (yrs) | ||||||||||||||||||||||||
| <30 | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | ||||||||||||
| ≧30 | 1.09 | 0.58–2.06 | 1.59 | 0.80–3.14 | 1.12 | 0.59–2.14 | 0.96 | 0.48–1.92 | 2.67 | 1.08–6.59 | 2.33 | 0.94–5.77 | 1.59 | 0.70–3.59 | 2.4 | 1.03–5.61 | 2.49 | 1.01–6.11 | 1.63 | 0.75–3.55 | 1.6 | 0.71–3.60 | 2.67 | 1.08–6.58 |
| Educational status | ||||||||||||||||||||||||
| Less thanhigh school | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | ||||||||||||
| High School | 1.71 | 0.71–4.10 | 1.97 | 0.80–4.86 | 2.89 | 1.08–7.75 | 3.25 | 0.71–15.0 | 0.65 | 0.25–1.66 | 0.56 | 0.20–1.61 | 0.64 | 0.20–2.10 | 0.9 | 0.34–2.41 | 0.85 | 0.27–2.65 | 1.36 | 0.42–4.40 | 0.45 | 0.15–1.32 | 0.61 | 0.23–1.65 |
| College or more | 1.67 | 0.76–3.69 | 1.71 | 0.75–3.90 | 2.7 | 1.08–6.75 | 4.17 | 0.96–18.2 | 0.61 | 0.26–1.41 | 0.86 | 0.35–2.13 | 1.53 | 0.55–4.21 | 0.82 | 0.33–2.02 | 1.54 | 0.56–4.20 | 1.63 | 0.54–4.92 | 0.98 | 0.40–2.41 | 0.79 | 0.33–1.89 |
| Occupationalexposure | ||||||||||||||||||||||||
| No | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | ||||||||||||
| Yes | 0.92 | 0.34–2.52 | 1.68 | 0.69–4.09 | 1.87 | 0.77–4.52 | 1.05 | 0.38–2.87 | 1.21 | 0.47–3.12 | 1.53 | 0.62–3.77 | 1.72 | 0.73–4.09 | 0.35 | 0.08–1.53 | 1.12 | 0.44–2.87 | 0.58 | 0.17–1.98 | 1.99 | 0.87–4.58 | 1.19 | 0.46–3.07 |
| TraditionalChineses Herbs | ||||||||||||||||||||||||
| No | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | ||||||||||||
| Yes | 1.41 | 0.87–2.29 | 1.61 | 0.98–2.63 | 1.63 | 0.99–2.68 | 1.04 | 0.61–1.78 | 1.19 | 0.69–2.09 | 1.95 | 1.08–3.51 | 1.95 | 1.08–3.51 | 1.19 | 0.68–2.06 | 1.18 | 0.68–2.03 | 1.56 | 0.90–2.72 | 1.86 | 1.04–3.32 | 0.94 | 0.54–1.63 |
| Fish cutletconsumption | ||||||||||||||||||||||||
| <1 meal/week | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | ||||||||||||
| 1–2 meal/week | 1.11 | 0.65–1.89 | 1.34 | 0.78–2.29 | 1.37 | 0.80–2.37 | 1.38 | 0.76–2.50 | 1.06 | 0.56–2.00 | 1.87 | 1.01–3.51 | 2.04 | 1.07–3.87 | 1.15 | 0.62–2.14 | 1.45 | 0.79–2.66 | 1.31 | 0.72–2.38 | 1.05 | 0.57–1.93 | 1.21 | 0.63–2.32 |
| ≧3 meal/week | 2.27 | 1.14–4.50 | 2.42 | 1.20–4.87 | 2.89 | 1.45–5.77 | 1.14 | 0.54–2.40 | 1.79 | 0.90–3.57 | 1.6 | 0.74–3.46 | 1.82 | 0.84–3.92 | 1.34 | 0.65–2.76 | 1.42 | 0.69–2.95 | 1.48 | 0.71–3.08 | 1.3 | 0.62–2.72 | 2.61 | 1.31–5.23 |
Note:
a
aOR: 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.