Table 5.
Association between prenatal exposure to metals and birth weight for both genders.
| Raw Data | Adjusted1 | Adjusted2 | Adjusted3 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metal (µg/L) | n | β (95%CI) | p | n | β (95%CI) | p | n | β (95%CI) | p | n | β (95%CI) | p |
| Hg | 481 | −5.127 (−12.889;2.635) | 0.195 | 265 | −4.946 (−14.821;4.929) | 0.325 | 255 | −0.238 (−8.261;7.911) | 0.954 | 265 | −4.336 (−14.185;5.513) | 0.387 |
| Pb | 481 | −6.749 (−14.199; 0.701) | 0.076 | 265 | −4.130 (−14.689;6.430) | 0.442 | 255 | −2.061 (−10.739;6.616) | 0.640 | 265 | −5.320 (−15.881;5.241) | 0.322 |
| As | 481 | 1.147 (−8.654;10.947) | 0.818 | 265 | 8.069 (−3.862;20.001) | 0.184 | 255 | 5.029 (−5.271;15.328) | 0.337 | 265 | 8.531 (−3.342;20.405) | 0.158 |
| Cd | 481 | −75.506 (−122.825;−28.187) | 0.002 | 265 | −78.490 (−136.062;−20.918) | 0.008 | 255 | −55.151 (−102.810;−7.491) | 0.024 | 265 | −77.258 (−134.562;−19.955) | 0.008 |
| Cr | 481 | 0.310 (−1.035;1.655) | 0.651 | 265 | 1.554 (−0.375;3.483) | 0.114 | 255 | 0.260 (−1.351;1.870) | 0.751 | 265 | 1.468 (−0.455;3.390) | 0.134 |
| Mn | 481 | 1.562 (−1.823;4.947) | 0.365 | 265 | 2.180 (−1.638;5.998) | 0.262 | 255 | 0.198 (−2.996;3.392) | 0.903 | 265 | 1.912 (−1.899;5.723) | 0.324 |
| Ni | 481 | −0.088 (−0.219;0.042) | 0.184 | 265 | −0.100 (−0.224;0.024) | 0.113 | 255 | −0.059 (−0.160;0.041) | 0.246 | 265 | −0.094 (−0.218;0.029) | 0.134 |
| Se | 481 | −0.058 (−0.326;0.210) | 0.670 | 265 | 0.033 (−0.249;0.314) | 0.820 | 255 | 0.070 (−0.158;0.298) | 0.546 | 265 | 0.035 (−0.245;0.316) | 0.804 |
| P-Se | 481 | −0.153 (−2.142;1.835) | 0.880 | 265 | −1.358 (−3.686;0.969) | 0.252 | 255 | −0.824 (−2.755;1.106) | 0.401 | 265 | −1.427 (−3.741;0.887) | 0.226 |
| Fe | 481 | 0.0004 (−0.0002;0.0010) | 0.213 | 265 | 6.53 × 10−5 (−0.001;0.001) | 0.844 | 255 | −0.0001(−0.001;0.0005) | 0.697 | 265 | −9.15 × 10−5 (−0.001;0.001) | 0.805 |
| Cu | 468 | −0.248 (−0.403;−0.093) | 0.002 | 265 | −0.242 (−0.432;−0.051) | 0.013 | 255 | −0.088(−0.248;0.073) | 0.283 | 265 | −0.242 (−0.432;−0.053) | 0.012 |
| Zn | 481 | 0.033 (−0.016;0.083) | 0.187 | 265 | 0.010 (−0.051;0.072) | 0.743 | 255 | −0.015(−0.067;0.037) | 0.574 | 265 | −0.0004 (−0.063;0.062) | 0.989 |
| Mg | 329 | 0.008 (−0.005;0.022) | 0.234 | 219 | 0.005 (−0.011;0.021) | 0.568 | 209 | 0.005 (−0.013;0.014) | 0.387 | 219 | 0.002 (−0.014;0.019) | 0.774 |
| Ca | 329 | −0.0060 (−0.011;−0.001) | 0.029 | 219 | −0.006 (−0.012;0.000) | 0.052 | 209 | −0.003 (−0.008;0.003) | 0.351 | 219 | −0.006 (−0.012;0.0005) | 0.072 |
1:Core adjustment: Age, BMI, alcohol during pregnancy, cotinine, parity, n-3/n-6 ratio; 2:Core and gestation age adjustment; 3:Core and region adjustment.