Table 3.

Adjusted* odds ratios for preterm birth (<37 weeks gestation) and low birth weight (<2500 grams) associated with living within 5 km of either high or low yearly fugitive emissions from coke or steel production facilities in Alabama between 1991 and 2010

Chemical emissions (lbs. per year)	Low birth weight	Preterm birth
BTEX**
High (>7,443 – 453,619)	1.17 (1.06-1.29)	1.09 (0.99-1.20)
Low (750–7,443)	0.98 (0.88-1.09)	0.84 (0.75-0.93)
Metals***
High (>3,256 – 236,459)	1.05 (0.99-1.12)	1.07 (1.01-1.14)
Low (1–3,256)	0.98 (0.92-1.04)	1.02 (0.96-1.08)
PAHs†
High (>1,000 – 81,100)	1.10 (0.98-1.23)	0.99 (0.89-1.11)
Low (1–1,000)	0.96 (0.85-1.09)	0.92 (0.82-1.03)
Lead
High (>57 – 20,000)	1.03 (0.96-1.10)	1.09 (1.03-1.16)
Low (1–57)	0.98 (0.92-1.05)	1.00 (0.94-1.06)
Manganese
High (>750 – 13,218)	1.06 (0.99-1.13)	1.07 (1.01-1.14)
Low (5–750)	0.98 (0.92-1.05)	1.04 (0.98-1.10)

*Adjusted for race, ethnicity, payment method, age, education, parity, and birth year.

**Benzene, toluene, ethylbenzene, xylene.

***Arsenic, cadmium, lead, manganese, mercury.

^†Polycyclic Aromatic Hydrocarbons: Includes emissions values reported for anthracene, phenanthrene, and naphthalene, as well as polycyclic aromatic compounds (includes 25 additional PAHs) in the TRI database.