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Crude and adjusted odds ratios (OR) for low birth weight by pollution exposure |
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| Exposure |
Crude odds ratio |
Adjusted* odds ratio |
Adjusted† odds ratio |
|
|
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| OR (95%CI) |
OR (95%CI) |
OR (95%CI) |
|
|
|
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| Formaldehyde Categorical variable (tertiles) |
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|
|
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| 1 (reference) |
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| 2 |
1.27 (0.82–1.95) |
1.86 (1.10–3.16) |
2.15 (0.96–4.81) |
| 3 |
1.39 (0.91–2.12) |
1.84 (1.12–3.03) |
2.09 (1.03–4.26) |
|
|
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| Continuous variable (per 5 μg/m3 increase in concentration) |
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|
|
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| 1.07 (0.74–1.53) |
1.10 (0.75–1.64) |
1.36 (0.75–2.47) |
|
|
|
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| Nitrogen dioxide Categorical variable (tertiles) |
|||
|
|
|||
| 1 (reference) |
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| 2 |
0.95 (0.61–1.47) |
1.11 (0.70–1.77) |
0.96 (0.47–1.96) |
| 3 |
1.37 (0.91–2.07) |
1.64 (1.04–2.58) |
1.54 (0.80–2.96) |
|
|
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| Continuous variable (per 10 μg/m3 increase in concentration) |
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|
|
|||
| 1.15 (0.97–1.36) |
1.23 (1.02–1.48) |
1.28 (0.97–1.68) |
|
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* Adjusted for parity, maternal age (≤ 19, 20–29, 30–34, ≥ 35), marital status, education, season of birth, maternal and paternal smoking † As above plus gestational age | |||
Maroziene and Grazuleviciene Environmental Health: A Global Access Science Source 2002 1:6 doi:10.1186/1476-069X-1-6 |
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