. 2011 Nov 19;10:127. doi: 10.1186/1475-2891-10-127

Table 4.

Biological measurements in blood and urine in all participants and according to seafood and n-3 supplement intake, given as mean ± SD or median.

		Seafood intake and n-3 supplement intake

	All	Q1	Q2	Q3	Q4
	(n = 53)	(n = 12)	(n = 17)	(n = 12)	(n = 12)
Sum marine n-3, μg/g RBC	232 ± 65	172 ± 31^a	206 ± 36^a	260 ± 54^b	298 ± 56^b
EPA	43 ± 21	7 ± 13^a	21 ± 16^a	47 ± 13^b	55 ± 26^b
DPA	56 ± 10	48 ± 7^a	54 ± 8^ab	58 ± 9^b	62 ± 11^b
DHA	145 ± 35	117 ± 29^a	132 ± 21^ab	155 ± 32^b	181 ± 27^b
25(OH)D, nmol/L	73 ± 33	60 ± 35^a	73 ± 35^ab	82 ± 33^b	83 ± 34^b
Selenium, (μg/L)	74 ± 25	72 ± 16^a	61 ± 16^ab	84 ± 28^ac	81 ± 32^ac
Iodine, (μg/L)	102	59^a	161^b	78^ac	182^bc

Different letters denote significant difference between quartile groups in the same row.