Table A.4.

Distributions and TEQs of serum PCDD/Fs in WTCHR vs. Russian Children’s Study participants.

	WTCHR (n=60)		Russian Children's Study (n=482)
	median (25th, 75th percentile)	median TEQ*	median (25th, 75th percentile)	median TEQ*
Serum polychlorinated dibenzo-p-dioxins (PCDDs) (pg/g lipid)
2,3,7,8-TCDD	1.71 (0.74, 20.2)	1.71	2.75 (1.34, 3.90)	2.75
1,2,3,7,8-PenCDD	14.1 (0.65, 34.4)	14.1	4.10 (1.41, 7.00)	4.10
1,2,3,4,7,8-HexCDD	0.01 (0.01, 12.5)	0.001	2.00 (0.71, 3.90)	0.20
1,2,3,6,7,8-HexCDD	0.02 (0.02, 0.04)	0.002	8.70 (5.40, 16.6)	0.87
1,2,3,7,8,9-HexCDD	14.4 (10.3, 27.0)	1.44	2.61 (0.85, 4.60)	0.26
1,2,3,4,6,7,8-HepCDD	23.5 (14.0, 47.2)	0.23	12.2 (8.20, 19.5)	0.12
OCDD	135 (64.8, 394)	0.04	96.1 (69.0, 134)	0.03
Σ PCDD	197 (128, 580)	17.5	136 (93, 189)	8.2
Serum polychlorinated dibenzofurans (PCDFs) (pg/g lipid)
2,3,7,8-TCDF	29.1 (15.5, 48.9)	2.91	0.50 (0.42, 1.63)	0.05
1,2,3,7,8-PenCDF	13.2 (0.01, 28.9)	0.40	0.57 (0.42, 1.91)	0.02
2,3,4,7,8-PenCDF	12.1 (0.24, 22.3)	3.64	9.0 (6.20, 14.6)	2.70
1,2,3,4,7,8-HexCDF	0.03 (0.02, 13.4)	0.0003	6.65 (4.10, 12.5)	0.67
1,2,3,6,7,8-HexCDF	0.02 (0.02, 0.05)	0.0002	4.20 (2.90, 6.70)	0.42
2,3,4,6,7,8-HexCDF	0.01 (0.01, 0.01)	0.0001	0.57 (0.42, 1.41)	0.06
1,2,3,7,8,9-HexCDF	6.29 (0.02, 33.2)	0.06	0.57 (0.42, 1.84)	0.06
1,2,3,4,6,7,8-HepCDF	77.5 (41.4, 161)	0.77	7.50 (5.47, 11.3)	0.08
1,2,3,4,7,8,9-HepCDF	0.01 (0.01, 0.01)	0.0001	0.64 (0.50, 2.26)	0.01
OCDF	26.4 (0.01, 110)	0.01	2.90 (1.80, 5.00)	0.001
Σ PCDF	232 (127, 449)	7.79	39 (27, 57)	4.2

WTCHR: World Trade Center Health Registry; TEQ: toxic equivalency quotient

^*based on 2005 World Health Organization toxic equivalency factors