Table 3.

Oil spill exposure and birth outcomes, women with pregnancies both before and after the oil spill, stratified by timing of pregnancy (n=503/1471 pregnancies)

	low birthweight					preterm birth
	post oil spill		pre oil spill		p for interaction	post oil spill		pre oil spill		p for interaction
	OR	95% CI	OR	95% CI		OR	95% CI	OR	95% CI
any oil spill exposure	0.94	0.55, 1.59	0.90	0.54, 1.50	0.81	1.55	0.74, 3.27	1.29	0.74, 2.23	0.77
income loss	0.78	0.45, 1.35	1.05	0.64, 1.71	0.44	1.04	0.52, 2.05	0.91	0.54, 1.52	0.89
trauma	1.52	0.56, 4.12	2.09	0.81, 5.44	0.79	0.87	0.18, 4.15	2.06	0.80, 5.29	0.24
loss of use of the coast	1.24	0.71, 2.17	0.93	0.55, 1.57	0.49	1.71	0.84, 3.46	1.11	0.65, 1.87	0.28
litigation	1.27	0.70, 2.29	1.59	0.96, 2.62	0.56	0.79	0.36, 1.75	1.40	0.84, 2.35	0.20
contact	1.00		1.00		0.12	1.00		1.00		0.02
1 indicator	1.24	0.38, 4.08	1.35	0.58, 3.15		1.03	0.28, 3.78	2.29	1.03, 5.09
2+ indicators	1.88	0.88, 4.02	0.84	0.40, 1.78		2.12	0.90, 4.99	0.83	0.39, 1.75
overall experiences					0.70					0.30
1-2 indicators	0.77	0.35, 1.66	0.90	0.49, 1.64		1.21	0.46, 3.14	1.53	0.78, 3.00
3-5	1.09	0.56, 2.11	0.86	0.43, 1.73		1.89	0.78, 4.57	1.25	0.66, 2.48
>5	1.12	0.54, 2.34	1.05	0.49, 2.24		1.47	0.52, 4.12	0.96	0.44, 2.08

Adjusted for age, gravidity, weight gain, BMI, race, income, education, smoking.