Table 3.

Adjusted regression coefficients for change in Mental Development Index associated with a ln-unit increase in urinary phthalate metabolite concentration, both overall and stratified by sex.

Metabolite	All (n=135)	Boys (n=64)	Girls (n=71)
	β (95%CI)	β (95%CI)	β (95%CI)
MEP	0.22 (−0.76, 1.21)	−0.64 (−2.31, 1.02)	1.05 (−0.13, 2.23)
MnBP	0.30 (−1.04, 1.65)	0.54 (−1.28, 2.37)	−0.15 (−2.16, 1.84)
MIBP	0.53 (−0.85, 1.91)	0.32 (−1.62, 2.28)	−0.12 (−1.94, 1.69)
MBzP	0.30 (−1.11, 1.73)	1.30 (−0.37, 2.97)	−0.72 (−2.45, 1.01)
MCPP	0.73 (−0.87, 2.33)	1.21 (−0.94, 3.36)	−0.52 (−2.83, 1.78)
MEHP	−0.16 (−1.89, 1.55)	1.72 (−0.89, 4.34)	−2.11 (−3.73, −0.49)*
MEHHP	−0.61 (−2.02, 0.79)	0.66 (−1.39, 2.72)	−1.89 (−3.64, −0.15)*
MEOHP	−0.54 (−1.91, 0.82)	0.85 (−1.11, 2.81)	−1.80 (−3.58, −0.03)*
MECPP	−0.80 (−2.38, 0.77)	0.91 (−1.18, 3.01)	−2.52 (−4.44, −0.61)*
Σ DEHP	−0.48 (−2.30,1.34)	1.45 (−0.75, 3.66)	−3.41 (−5.26, −1.55)**

Models were adjusted by mother’s age, mother’s educational level (total years of school), birth weight, breastfeeding practices (0=never, 1= at least one month, 2= 7 months, 3= 12 months), Z-score for weight-for-age, child’s current age (24, 30 or 36 months), and laboratory.

^*p value<0.05

^**p value<0.01