Table 2.

Subject characteristics (n = 20).

Characteristic	Mean	Minimum	Maximum
Age (years)	31	24	37
Body mass index	26	21	36
Weight gain during pregnancy (kg)	15	–1	24
Parity (n)	1	0	3
Gestational length (weeks)	39	35	43
Fish intake, pregnancy (times/month)	2.0	0	8
Fish intake, breast-feeding (times/month)	2.4	0	8
Amalgam-filled surfaces (n)	5	0	24
Infant birth weight (g)	3,666	2,720	4,505