Table 8.

Results from studies identified as high quality which measured social development (n = 3).

Study	n	Exposure	Units	Outcome	Time of Outcome	Estimate	95% CI	p-Value
Daniels et al. (2004)	1054	Umbilical cord	μg/g	MCDI: Social activity	15 months	−0.2		0.9
Daniels et al. (2004)	1054	Umbilical cord	μg/g	DDST: Social Activity	18 months	0.5		0.8
Hu et al. (2016)	410	Umbilical cord	Ln μg/L	GDS: Social domain	12 months	4.06	0.51 to 7.62
Hu et al. (2016)	410	Whole blood	Ln μg/L	GDS: Social domain	12 months	0.74	−5.77 to 4.31
Valent et al. (2013)	505	Hair	Ln ng/g	Bayley-III: Social-emotional	18 months	1.77		0.11
Valent et al. (2013)	378	Umbilical cord	Ln ng/g	Bayley-III: Social-emotional	18 months	−0.07		0.95