Table III.
Association between occupational chemical exposure and fetal weight, fetal HC, and fetal length among pregnant women participating in a birth cohort study.
| Occupational exposure | Fetal weight |
Fetal HC |
Fetal length |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Unadjusted estimate | Adjusted estimate | Standard error | Unadjusted estimate | Adjusted estimate | Standard error | Unadjusted estimate | Adjusted estimate | Standard error | |
| Exposure to | |||||||||
| PAH | −0.01647* | −0.01660* | 0.00798 | −0.01053 | −0.01056 | 0.01114 | −0.00328 | −0.003139 | 0.01020 |
| Pesticides | −0.01892 | −0.01891 | 0.01274 | −0.02619 | −0.02603 | 0.01703 | −0.03610* | −0.035071* | 0.01605 |
| Phthalates | −0.01675* | −0.01691* | 0.00744 | −0.01632 | −0.01553 | 0.00982 | −0.01845* | −0.018183* | 0.00908 |
| Organic solvents | −0.00411 | −0.00410 | 0.00424 | −0.00975 | −0.00902 | 0.00560 | −0.00743 | −0.007048 | 0.00521 |
| Alkylphenolic compounds | −0.00757 | −0.00766 | 0.00500 | −0.01834* | −0.01752* | 0.00661 | −0.00954 | −0.008990 | 0.00621 |
| Metals | −0.01682 | −0.01649 | 0.00872 | −0.00937 | −0.00888 | 0.01163 | −0.01246 | −0.012172 | 0.01087 |
| Any chemicals | −0.00712 | −0.00710 | 0.00363 | −0.00912 | −0.00861 | 0.00482 | −0.00520 | −0.004850 | 0.00449 |
The beta coefficients represent the average decline in SD per gestational week for fetal weight, HC and fetal length. Estimates are adjusted for the following confounders: maternal age, educational level, ethnicity, fetal gender, weight before pregnancy, height at intake, smoking during pregnancy, alcohol use during pregnancy, folic acid use, parity, long periods of standing, handling loads of >5 kg, handling loads of >25 kg, night shifts, pre-eclampsia, pregnancy-induced hypertension and diabetes gravidarum.
*P> 0.05.