Subclinical hyperthyroidism is when thyroid-stimulating hormone (TSH) levels are low or undetectable, but thyroid hormone levels remain healthy. Usually, it is symptomless and may not need treatment.

Thyroid-stimulating hormone (TSH) prompts the thyroid gland to increase hormone production. Your body uses TSH to control thyroid hormone levels. TSH ensures you have the thyroid hormones to regulate ...

Several factors can affect thyroid test results, the blood tests used to measure thyroid-stimulating hormone (TSH), triiodothyronine (T3) and thyroxine (T4), and the levels that are key to your ...

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The serum levels of FT3, free thyroxine (FT4), and thyroid-stimulating hormone (TSH) were measured upon admission. Normal thyroid stimulating hormone level with FT3 below the lower limit of the ...

In sensitivity analyses, city level, TSH, and temperature were added into Model 4 to adjust their potential effect, respectively. Extended confounder models were used in sensitivity analyses because ...