Table 6.
The adjusted odds ratios of pregnancy results for levels of microelements.
| Adjusted Odds Ratios of Pregnancy Results | |||
|---|---|---|---|
| AOR * | (95% CI:) | p ** | |
| For selenium (Se) concentrations (for 1 µg/L) | |||
| Pregnancy-induced hypertension (PIH) | 0.95 | 0.91–0.99 | 0.011 |
| Isolated gestational hypertension (GH) | 0.94 | 0.90–0.98 | 0.004 |
| Preeclampsia (PE) | 1.03 | 0.95–1.10 | 0.490 |
| IUGR | 0.89 | 0.82–0.98 | 0.013 |
| Gestational Diabetes Mellitus (GDM) | 1.01 | 0.97–1.04 | 0.748 |
| GDM-1 | 1.01 | 0.97–1.04 | 0.760 |
| GDM-2 | 1.00 | 0.92–1.08 | 0.914 |
| Preterm birth <34 week | 0.93 | 0.86–1.00 | 0.061 |
| Preterm birth <37 week | 0.97 | 0.92–1.01 | 0.117 |
| For iron (Fe) concentrations (for 100 µg/L) | |||
| Pregnancy-induced hypertension (PIH) | 0.93 | 0.85–1.02 | 0.115 |
| Isolated gestational hypertension (GH) | 0.98 | 0.90–1.07 | 0.655 |
| Preeclampsia (PE) | 0.73 | 0.57–0.92 | 0.009 |
| IUGR | 0.89 | 0.74–1.07 | 0.222 |
| Gestational Diabetes Mellitus GDM | 0.94 | 0.86–1.01 | 0.108 |
| GDM-1 | 0.92 | 0.84–1.00 | 0.056 |
| GDM-2 | 1.04 | 0.87–1.22 | 0.687 |
| Preterm birth <34 week | 0.96 | 0.81–1.14 | 0.644 |
| Preterm birth <37 week | 0.94 | 0.85–1.04 | 0.258 |
| For zinc (Zn) concentrations (for 100 µg/L) | |||
| Pregnancy-induced hypertension (PIH) | 0.86 | 0.67–1.10 | 0.229 |
| Isolated gestational hypertension (GH) | 0.90 | 0.73–1.11 | 0.331 |
| Preeclampsia (PE) | 0.72 | 0.37–1.38 | 0.323 |
| IUGR | 1.05 | 0.83–1.34 | 0.680 |
| Gestational Diabetes Mellitus GDM | 1.00 | 0.86–1.17 | 0.984 |
| GDM-1 | 0.97 | 0.80–1.18 | 0.784 |
| GDM-2 | 1.08 | 0.85–1.37 | 0.527 |
| Preterm birth <34 week | 0.84 | 0.48–1.46 | 0.532 |
| Preterm birth <37 week | 0.91 | 0.66–1.26 | 0.575 |
| For copper (Cu) concentrations (for 100 µg/L) | |||
| Pregnancy-induced hypertension (PIH) | 0.93 | 0.85–1.02 | 0.138 |
| Isolated gestational hypertension (GH) | 0.95 | 0.86–1.04 | 0.252 |
| Preeclampsia (PE) | 0.95 | 0.78–1.15 | 0.597 |
| IUGR | 0.83 | 0.67–1.02 | 0.075 |
| Gestational Diabetes Mellitus GDM | 1.04 | 0.96–1.13 | 0.371 |
| GDM-1 | 1.04 | 0.96–1.14 | 0.332 |
| GDM-2 | 1.01 | 0.83–1.21 | 0.952 |
| Preterm birth <34 week | 1.08 | 0.92–1.26 | 0.336 |
| Preterm birth <37 week | 0.99 | 0.90–1.10 | 0.901 |
* AOR: Adjusted odds ratios calculated in the multivariate logistic regression; ** p-value obtained using the Wald test (p < 0.05 was considered to be significant); the results for risk of IUGR were obtained after adjusting for maternal age, prepregnancy BMI, gestational age at recruitment, smoking, parity, prior PIH, assisted reproductive technology; the results for risk of PIH and GDM were obtained in the same model + education level < 12 years; the results for risk of preterm births (<37th and <34th week) were obtained after adjusting for maternal age, prepregnancy BMI, gestational age at recruitment, smoking, preeclampsia, delivery by caesarean section, parity, and fetal sex (the results were not sustained in models with PROM); CI: Confidence intervals.