Screening analysis of positive thyroid autoantibody in waterborne high iodine ar-ea healthy people / 中国免疫学杂志

ABSTRACT

Objective:To investigate the correlation between positive rate of thyroid autoantibodies in healthy people and thy -roid dysfunction.Methods:Fasting blood from 3218 healthy examined people in Cangzhou were collected and the serum was separa -ted.Automatic electrochemiluminescence immunoassay systems and reagents were used to determine the concentration of thyroid stimu -lating hormone(TSH),free triiodothyroninthyroid(FT3),free thyroxine(FT4),peroxidase antibody(TPOAb)and thyroglobulin antibody ( TgAb ) .TPOAb>34 U/ml and TgAb>115 U/ml was positives.Statistical analysis of test results .statistica analysis of test reults.Results:The positive rate of thyroid autoantibodies of tested population was 16.19%.The positive rates of TPOAb and TgAb were 14.57%,12.74%separately.The detection rate of TPOAb and TgAb was 11.12%in tested population.The positive rate of TPO-Ab and TgAb and TPOAb+TgAb were 6.92%,5.68%,5.03%separately in 1532 male subjects and were 21.53%,19.16 ,16.67%separately in 1686 female subjects,which were significantly higher in female group than that in male group (P<0.001).They gradually increased with age and reached a peak above 70 years old in female group and in 50-59 in male group.The positive rate and OR of thy-roid autoantibodies in hyperthyroidism and subclinical hyperthyroidism and in hypothyroidism and subclinical hypothyroidism and in hy -pothyroidism and subclinical hypothyroidism were statistically significant .Conclusion:The positive incidence of thyroid autoantibodies is higher in healthy people of Cangzhou .It is essential to follow-up these people of normal thyroid function with positive autoantibodies in order to facilitate prevention and early diagnosis and treatment of thyroid disease .