Table 2.

Pearson correlation coefficients of continuous characteristics with child neurodevelopmental test score at age 8 years.

Continuous characteristics	n	Mean ± SD	Pearson r with maternal Cd (log10 μg/g creatinine)	n with FSIQ at age 8	Mean ± SD	Pearson r with FSIQ at age 8	n with Adaptive Skills score at age 8	Mean ± SD	Pearson r with Adaptive Skills score at age 8
Maternal IQ†	264	107.97±14.22	0.10	162	106.94±15.11	0.49	168	107.20±15.07	0.12
Maternal BDI depression (score at baseline)*†,‡	274	9.35±6.35	−0.13	172	9.94±6.64	−0.32	178	9.92±6.64	−0.35
Maternal blood lead at 16w [GM(GSD), μg/dL ]†	276	0.65(1.49)	0.003	173	0.64 (1.45)	−0.20	179	0.64 (1.44)	−0.12
Maternal serum ∑PCBs* [GM (GSD), ng/g lipid]†	228	45.58(1.73)	0.14	150	44.98 (1.74)	0. 20	153	45.00 (1.73)	0.10
Maternal cotinine at 16w [GM(GSD), ng/mL]†,‡	270	0.04(19.88)	−0.003	170	0.05 (21.94)	−0.32	176	0.05 (22.74)	−0.16
HOME score at age 1 visit†,‡	261	39.85±4.87	0.11	161	39.63±4.92	0.39	167	39.69±4.89	0.21

GM, geometric mean; GSD, geometric standard deviation; BDI, Beck Depression Index; FSIQ, Full-Scale IQ; SD, standard deviation.

^*p<0.05 for cadmium.

^†p<0.05 for FSIQ at age 8 years.

^‡p<0.05 for Adaptive Skills score at age 8 years.