摘要
Objective To investigate the changes and related factors of maternal thyroid autoantibodies during early pregnancy.Methods Urinary iodine concentration（UIC）,serum thyroid stimulating hormone（TSH）,free thyroxine（FT4）,thyroid-peroxidase antibody（TPOAb）,thyroglobulin antibody（Tg Ab）concentrations were determined in 7 190 women during early pregnancy in an iodine-sufficient region of China.Results The prevalence of TPOAb positivity and Tg Ab positivity was 8.
