Table 2.

Adjusted Effect Contribution for Each Averaged Chemical Biomarker Concentration Included in the Overall Mixture Effect on Nonverbal IQ (n = 708)^a

	negative effect contribution		weight	positive effect contribution		weight
biomarker	B	95%CI	%	B	95%CI	%
Phthalate Metabolites
MMP	−0.29	−1.36, 0.78	5.3
MEP	−0.21	−1.39, 0.98	3.8
MCPP	−0.84	−2.07, 0.38	15.5
MiBP	−0.77	−2.08, 0.55	14.1
MnBP				0.46	−0.88, 1.81	12.2
MECPP	−1.44	−2.95, 0.07	26.5
MCMHP				0.68	−0.58, 1.93	17.9
MBzP				0.41	−0.68, 1.50	10.8
PA	−0.41	−1.70, 0.88	7.6
MEOHP				0.94	−1.31, 3.18	24.6
MEHHP				0.38	−1.70, 2.46	10.0
total	−3.96		72.8	2.87		75.5
Bisphenol					-	-
BPA				0.41	−0.61, 1.43	10.9
total				0.41		10.9
OP Pesticide Metabolites
DMDTP	−0.08	−1.42, 1.27	1.4
DMTP	−0.79	−2.35, 0.76	14.6
DMP	−0.61	−1.92, 0.70	11.2
DETP				0.26	−1.01, 1.53	6.8
DEP				0.26	−1.05, 1.56	6.8
total	−1.48		27.2	0.52		13.6
Total Mixture
total	−5.44		100%	3.80		100%

^aModels adjusted for fetal sex, maternal age, maternal prepregnancy bmi, maternal education level, maternal ethnicity, household income, marital status, parity, maternal smoking, maternal alcohol use, maternal IQ, and child age at assessment. Abbreviations: MEP = monoethyl phthalate, MMP = monomethyl phthalate, MiBP = monoisobutyl phthalate, MnBP = mono-n-butyl phthalate, MECPP = mono-(2-ethyl-5-carboxypentyl) phthalate, MCMHP = mono-[(2-carboxymethyl) hexyl] phthalate, MEOHP = mono-(2-ethyl-5-oxohexyl) phthalate, MEHHP = mono-(2-ethyl-5-hydroxyhexyl) phthalate, MCPP = mono(3-carboxypropyl) phthalate, mBzP = monobenzyl phthalate, PA = phthalic acid, BPA= bisphenol A, DMDTP = dimethyldithiophosphate, DMTP = dimethylthiophosphate, DMP = dimethylphosphate, DETP = diethylthiophosphate, and DEP = diethylphosphate.