Table 2.
Analysis of the association between MNI (Z-scored, in units of SD) from mid-pregnancy FFQs and WISC IQ at 7 years adjusted for covariates in table 1 (n=767). Continuous variables were Z-scored for ease of interpretation. The scale is an estimate of root mean square error
| Parameter | Model adjustments | ||||||||
| Covariates | Covariates+birth weight | Covariates+birth weight+BPF | |||||||
| Estimate | SE | P value | Estimate | SE | P value | Estimate | SE | P value | |
| Intercept | 95.63 | 0.95 | <0.001 | 95.48 | 0.95 | <0.001 | 95.25 | 0.94 | <0.001 |
| MNI_Z | 1.29 | 0.50 | 0.010 | 1.18 | 0.50 | 0.017 | 1.29 | 0.49 | 0.009 |
| Female | 3.90 | 0.87 | <0.001 | 4.16 | 0.88 | <0.001 | 4.43 | 0.86 | <0.001 |
| Smoker | −2.38 | 1.45 | 0.101 | −2.42 | 1.45 | 0.094 | −2.18 | 1.42 | 0.126 |
| Weight_Z | −1.16 | 0.43 | 0.007 | −1.44 | 0.45 | 0.002 | −1.52 | 0.44 | 0.001 |
| Premature birth | −3.15 | 2.21 | 0.154 | −1.19 | 2.40 | 0.618 | −0.98 | 2.36 | 0.677 |
| Mom education | 4.07 | 0.99 | <0.001 | 4.01 | 0.99 | <0.001 | 4.23 | 0.97 | <0.001 |
| Mom IQ_Z | 1.99 | 0.45 | <0.001 | 1.99 | 0.45 | <0.001 | 2.04 | 0.44 | <0.001 |
| Energy_Z | −0.35 | 0.47 | 0.454 | −0.41 | 0.47 | 0.380 | −0.42 | 0.47 | 0.366 |
| Birth Weight_Z | 1.02 | 0.49 | 0.037 | 1.22 | 0.48 | 0.012 | |||
| Creatinine_Z | 0.58 | 0.44 | 0.187 | ||||||
| LogBPF_Z | −1.38 | 0.42 | 0.001 | ||||||
| Scale | 12.02 | 0.31 | 11.98 | 0.31 | 11.77 | 0.30 | |||
BPF, bisphenol F; FFQ, Food Frequency Questionnaire; MNI, My Nutrition Index; WISC, Wechsler Intelligence Scale for Children.