Table 2.

Distribution of SG-corrected phthalate metabolite concentrations (ng/ml) in maternal urine samples collected during the third trimester of pregnancy by sex of child.

			ALL (n=135)	BOYS (n=64)	GIRLS (n=71)	P-value*
Metabolite	LOD	% below LOD	Geometric mean (95% CI)	Geometric mean (95% CI)	Geometric mean (95% CI)
MEP	0.8	0	138 (108, 176)	140.5 (99,199)	136 (96, 191)	0.95
MnBP	0.6	0	85.61 (71.55, 102.42)	86.95 (65.48, 115)	84.41 (66.9, 106)	0.86
MIBP	0.2	2.2	2.30 (1.92, 2.76)	2.15 (1.63, 2.82)	2.45 (1.92, 3.12)	0.24
MBzP	0.3	1.5	3.54 (2.94, 4.26)	3.66 (2.76, 4.85)	3.44 (2.68, 4.40)	0.74
MCPP	0.2	0.7	1.75 (1.49, 2.06)	1.67 (1.28, 2.18)	1.83 (1.49, 2.23)	0.52
MEHP	1.2	4.4	6.56 (5.72, 7.53)	6.21 (5.09, 7.58)	6.89 (5.67, 8.36)	0.31
MEHHP	0.1	0	22.08 (18.77, 25.96)	21.19 (17.03, 26.37)	22.90 (17.98, 29.17)	0.39
MEOHP	0.1	0	14.23 (12.05, 16.80)	13.71 (10.96, 17.15)	14.72 (11.48, 18.86)	0.40
MECPP	0.2	0	39.65 (34.32, 45.81)	36.99 (30.35, 45.08)	42.22 (34.14, 52.20)	0.32
Σ DEHP (nmol/ml)	--		0.35 (0.30, 0.40)	0.32 (0.28, 0.36)	0.38 (0.32, 0.45)	0.06

^*Wilcoxon test comparing metabolite concentrations by sex.