Table 3: TSH and FT4 in subgroups of euthyroid patients with diabetes.

Subgroups of antidiabetes drugs values

TSH (mU/L)
 Median2. × other groups < 0.05
INS × other groups < 0.05
 95% CI2.9–3.42.9–3.64.4–6.53.0–4.3

FT4 (pmol/L)
 95% CI12.9–16.710.3–15.412.9–16.714.2–15.4

TSH: thyroid stimulating hormone; FT4: free thyroxine; 25–75%: 25–75 percentiles CI: confidence interval; NS: not significant. MTF: metformin; SU/DPP4/TZD: sulfonylureas, dipeptidyl peptidase 4 (DPP4) inhibitors, and thiazolidinedione analyzed together. For converting FT4 in nd/dL, multiply pmol/L by 0.078.