Fig. 1

Determinants of placental iodine concentrations in multiple regression analyses (n = 462). The determinants were selected by stepwise linear regression analysis, setting the p-value for entering and to stay in the model at 0.15. In the final model, the estimate of each determinant is presented after adjustment for the other determinants. •p < 0.15; *p < 0.05; **p < 0.01; ***p < 0.001