Table 6:
Results from the stratified trinomial WQS regression, with positively constrained betas, for the two logit models with urinary biomarker concentrations quantiled (into quartiles) in a generalized logit model adjusted for covariatesa (N=207).
| ASD vs TD | non-TD vs TD | |||||||
|---|---|---|---|---|---|---|---|---|
| ORb (95% CI) | 2.14 (2.09, 2.19) | 3.18 (3.09, 3.28) | ||||||
| P value | 0.054ǂ | 0.015* | ||||||
| Urinary biomarker | Boys Weights (%) | Relative Contribution | Girls Weights (%) | Relative Contribution | Boys Weights (%) | Relative Contribution | Girls Weights (%) | Relative Contribution |
| BPA | 3.0 | 5.1 | 7.4 | 18.2 | 8.0 | 23.2 | 11.7 | 17.8 |
| ETPB | 41.2 | 69.5 | 14.9 | 36.4 | 4.6 | 13.3 | 17.3 | 26.4 |
| MEPB | 3.7 | 6.2 | 2.0 | 4.8 | 16.5 | 47.8 | 27.6 | 42.2 |
| PRPB | 11.4 | 19.2 | 16.6 | 40.6 | 5.4 | 15.6 | 8.9 | 13.6 |
| Sum | 59.2 | 40.8 | 34.5 | 65.5 | ||||
a
Adjusted for pre-pregnancy body mass index, prenatal vitamin use (yes/no), homeowner status (yes/no), birth year, and child’s sex.
b
The OR represents the odds of having ASD or non-TD compared to TD for a one unit increase (on a scale from 0 to 3) in the WQS index score.
ǂ
P-value between 0.05 – 0.12 is borderline statistically significant.
*
P-value <0.05 is statistically significant.