a decreasing trendp < 0.001
In tooth dentin, there was a decreasing trend in Mn levels over time ( p < 0.001) with the second trimester > third trimester > postnatal ( p < 0.001).
In tooth dentin, there was a decreasing trend in Mn levels over time ( p < 0.001) with the second trimester > third trimester > postnatal ( p < 0.001).
Spearman correlation coefficients were borderline significant ( p < 0.1) between Mn dust loading (μg/m 2 ) and prenatal Mn dentin ( r s = 0.27, 95% CI: −0.06, 0.55) and cord blood Mn concentrations ( r s = 0.29, 95% CI: −0.05, 0.57).