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| Name | Class |
|---|---|
| Ankara City Hospital Bilkent | OTHER |
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The goal of this retrospective observational study is to determine whether vitamin D levels differ in patients with Hashimoto's thyroiditis (HT) compared to those without Hashimoto's thyroiditis. The main research questions are:
Are vitamin D levels lower in HT patients compared to non-HT patients? Do vitamin D levels vary between HT and non-HT patients based on thyroid function status?
The study was conducted by retrospectively reviewing the medical records of patients who visited the hospital outpatient clinic.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Adults | Patients with thyroid function tests (thyroid-stimulating hormone (TSH), free T3 (fT3), free T4 (fT4)), thyroid antibodies (anti-Tg, anti-TPO), and 25(OH) vitamin D levels |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| vitamin D 25(OH)D | Diagnostic Test | Thyroid functions (thyroid-stimulating hormone (TSH), serbest triiodothyronine (fT3), serbest thyroxine (fT4)); Thyroid antibodies (Anti-thyroid peroxidase (anti-TPO), anti-thyroglobulin (anti-TG)) |
| Measure | Description | Time Frame |
|---|---|---|
| Vitamin D 25 OH D | nmol/L | Baseline |
| thyroid-stimulating hormone (TSH) | uIU/mL | Baseline |
| free thyroxine (fT4) | ng/dL | Baseline |
| Anti-thyroid peroxidase (anti-TPO) | IU/mL | Baseline |
| anti-thyroglobulin (anti-TG) | IU/mL | Baseline |
| Measure | Description | Time Frame |
|---|---|---|
| free triiodothyronine (fT3) | pg/ml | Baseline |
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Inclusion Criteria:
Patients with the following biochemical parameters:
Exclusion Criteria:
-
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Patients who apply to the Endocrinology Clinic of Ankara Bilkent City Hospital
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| Name | Affiliation | Role |
|---|---|---|
| Rahime E Karakaya, PhD | Ankara Yildirim Beyazıt University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ankara Bilkent City Hospital | Ankara | Çankaya | 06800 | Turkey (Türkiye) |
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