[Iodine supplementation during pregnancy and its influence on the newborn].

The aim of this study was comparison of urinary iodine excretion among parturients and their newborns with iodine supplementation (study group) and parturiens and their newborns without this supplementation (control group). Concentration of iodine jons in urine < 10 micrograms/100 ml was 7.7% in study group and 35.7% in control group. Mothers who received iodine had newborns with low concentration of iodine jons in 15.4% and 57.2% in control group. There is inadequate iodine supply among silesian pregnant women and in their neonates so additional maternal iodine supplementation is necessary.