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Trimester-specific odds ratios (OR)* of low birth weight and premature birth for pollution exposure |
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| Pollutant |
Low birth weight |
Preterm birth |
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| Single pollutant model |
Multiple pollutant model† |
Single pollutant model |
Multiple pollutant model† |
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| OR (95% CI) |
OR (95% CI) |
OR 95% CI |
OR 95% CI |
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| Formaldehyde(per 5 μg/m3 increase in concentration) |
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|
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| 1st trimester |
2.20 (1.00–4.85) |
2.39 (1.07–5.32) |
1.13 (0.64–1.97) |
0.91 (0.49–1.68) |
| 2nd trimester |
1.48 (0.65–3.40) |
1.57 (0.68–3.64) |
0.46 (0.27–0.78) |
0.38 (0.21–0.67) |
| 3rd trimester |
1.29 (0.62–2.73) |
1.17 (0.52–2.65) |
1.01 (0.64–1.59) |
0.94 (0.57–1.53) |
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| NO2 (per 10 μg/m3 increase in concentration) |
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|
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| 1st trimester |
0.91 (0.53–1.56) |
0.79 (0.45–1.39) |
1.67 (1.28–2.18) |
1.69 (1.28–2.23) |
| 2nd trimester |
0.93 (0.61–1.41) |
0.88 (0.57–1.36) |
1.13 (0.90–1.40) |
1.30 (1.03–1.64) |
| 3rd trimester |
1.34 (0.94–1.92) |
1.32 (0.92–1.91) |
1.19 (0.96–1.47) |
1.19 (0.96–1.49) |
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* odds ratio adjusted for gestational age (low birth weight model only), parity, maternal age (≤ 19, 20–29, 30–34, ≥ 35), marital status, education, season of birth, maternal and paternal smoking † also adjusted for the other air pollutant assessed | ||||
Maroziene and Grazuleviciene Environmental Health: A Global Access Science Source 2002 1:6 doi:10.1186/1476-069X-1-6 |
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