NOBEL MEDICUS, cilt.12, sa.2, ss.20-25, 2016 (ESCI)
Objective: Estimating the serum thyroid stimulating hormone (TSH) concentration is the most sensitive test to show thyroid function. TSH values of 95 percent of the population fall between 0.3-2.5 mIU/L. Although lower limits of the reference interval is certain, upper limits remains controversial. Research data indicate that individuals with TSH values outside the 2.5-3.0 mIU/L interval are under risk for thyroid disorders. The purpose of this study is to investigate the time dependent subclinical hypothyroidism risk of the individuals with TSH values over 2.5 mIU/L.