Fig. 1.

CB Tg according to maternal smoking and iodine supplementation. Results are expressed as medians. The CB Tg of smokers from the control group was significantly higher than the CB Tg from nonsmokers whether they took iodine (p = 0.007) or not (p = 0.002). It also tended to be higher than the CB Tg of smokers from the group taking iodine supplementation (p = 0.1). On the other hand, the Tg of nonsmokers was not different whether they took iodine or not, nor from the Tg of smokers who took iodine.