Table 5.

Full and reduced linear regression models for developmental outcomes at ages 36 and 48 months.

		Full regression model					Reduced regression model
Measure	Statistic	Ate fish/seafood during pregnancy	Lncord mercury	Adjusted R2	Model p-value	No.	Ate fish/seafood during pregnancy	Ln-cord mercury	Adjusted R2	Model p-value	No.
MDI 12	b	2.49	−0.53	−0.010	0.558	132	2.68	−0.81	−0.008	0.548	133
	p	0.192	0.600				0.148	0.407
PDI 12	b	2.36	−1.39	0.008	0.390	132	2.15	−1.75	0.011	0.314	133
	p	0.408	0.358				0.436	0.231
MDI 24	b	2.99	−2.38	0.234	0.000	131	2.44	−2.76	0.214	0.000	132
	p	0.231	0.072				0.325	0.035
PDI 24	b	4.58	−2.20	0.069	0.069	130	3.77	−2.56	0.019	0.244	131
	p	0.070	0.101				0.138	0.055
MDI 36	b	4.13	−1.43	0.092	0.046	114	4.21	−1.32	0.112	0.008	114
	p	0.092	0.236				0.080	0.26
PDI 36	b	9.22	−4.07	0.114	0.025	111	8.73	−4.16	0.150	0.002	111
	p	0.005	0.010				0.006	0.007
Performance IQ	b	4.07	−3.20	0.180	0.003	107	4.26	−3.45	0.200	0.000	107
	p	0.161	0.039				0.137	0.023
Verbal IQ	b	5.60	−2.87	0.351	0.000	107	5.60	−2.92	0.370	0.000	107
	p	0.025	0.030				0.022	0.023
Full IQ	b	5.54	−3.616	0.372	0.000	107	5.64	−3.76	0.385	0.000	107
	p	0.019	0.004				0.015	0.002

Reduced models controlled for race (Asian, black, other), maternal IQ (TONI), per capita family income, and child’s sex and gestational age at birth. Full models controlled for these variables plus maternal age, prenatal ETS exposure, marital status, education, material hardship, proportion breast-feeding (see Table 4, note c), and exact age in days at testing.