Notes for the table
Beck Depression Inventory‐II (BDI‐II), consisting of 21 items assessing specific cognitive, affective, and physical symptoms of depression, corresponds well to a clinical diagnosis of depressive disorders outlined in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (8-10). The total BDI‐II is the sum of all item scores. The minimum score is 0, and maximum score is 63. The BDI‐II scores of 0‐13 denote no/minimal depression, scores of 14‐19 denote mild depression, scores of 20‐28 denote moderate depression, and scores of 29‐63 denote severe depression.
Validity of these tests in patients with hypothyroidism has been well established previously (8.9). Serum TSH, free T4, and total T3 were measured by the electrochemiluminescence immunoassay (ECLIA, Cobas 8000, K Diagnostics, Indianapolis, IN). DNA was extracted from blood samples.