Table 2.

Maternal and cord blood total mercury by number of types of fish/seafood reported eaten during pregnancy.

		Maternal Hg			Cord Hg
Race/ethnicity	No. of fish/seafood types reported	μg/L	No. of measures	SD	μg/L	No. of measures	SD
Asian	0	2.87	12	3.12	14.00	28	15.15
	1	6.71	10	3.68	15.90	39	9.82
	2	5.44	8	6.10	16.41	24	15.03
	≥ 3	3.02	6	1.19	10.81	11	9.15
	Total	4.53a	36	4.13	14.95a	102	12.66
White	0	1.36	33	1.07	2.18	38	1.63
	1	1.59	20	1.04	3.68	17	3.53
	2	2.06	21	1.35	4.06	18	2.03
	≥ 3	2.55	35	1.56	4.84	35	3.28
	Total	1.92	109	1.37	3.59	108	2.85
Black	0	1.48	12	1.04	2.47	12	2.13
	1	1.41	7	0.73	2.47	6	1.41
	2	1.75	13	0.98	4.10	16	2.07
	≥ 3	2.32	9	2.11	4.38	11	2.75
	Total	1.74	41	1.29	3.52	45	2.30
Other/not reported	0	1.24	10	0.55	1.82	6	1.09
	1	2.15	9	1.75	6.52	10	8.88
	2		0		4.85	2	2.76
	≥ 3	2.34	7	1.04	4.61	7	2.16
	Total	1.85	26	1.26	4.72	25	5.90
All non-Asians combined	0	1.36	55	0.98	2.20	56	1.68
	1	1.70	36	1.21	4.32	33	5.57
	2	1.94	34	1.21	4.11	36	2.01
	≥ 3	2.48	51	1.59	4.71	53	3.00
	Total	1.87a	176	1.33	3.73a	178	3.33

^aGroup means for maternal and cord blood mercury were significantly different for Asians compared with all non-Asians (both p < 0.01, Mann–Whitney).