Effect of Treatment for Vitamin D Deficiency on Thyroid Function and Autoimmunity in Hashimoto's Thyroiditis.

Change from baseline Thyroid stimulating hormone at 3 months

Serum Thyroid stimulating hormone (TSH) (uIU/mL)

Time frame: Basal and final (after 3 months)

Change from baseline Free thyroxine at 3 months

Serum Free thyroxine (FT4) (ng/dL)

Time frame: Basal and final (after 3 months)

Change from baseline Total triiodothyronine at 3 months

Serum Total triiodothyronine (T3) (ng/dL)

Time frame: Basal and final (after 3 months)

Change from baseline Lipid profile at 3 months

Lipid profile: It includes total cholesterol (mg/dl), high-density lipoprotein (HDL) (mg/dl), low-density lipoprotein (LDL) (mg/dl), very low-density lipoprotein (VLDL) (mg/dl), and triglycerides (mg/dl).

Time frame: Basal and final (after 3 months)

Change from baseline glycemia at 3 months

Fasting glycemia (mg/dl)

Time frame: Basal and final (after 3 months)

Change from baseline ThyPro-39 at 3 months

Questionnaire ThyPro-39 (Quality of Life Questionnaire for Patients with Thyroid Disease): ThyPRO-39 measures the severity of symptoms and overall health-related quality of life of patients with thyroid disease, self-reported during the previous 4 weeks through a questionnaire. Each item on the questionnaire is rated by a five-point Likert scale (not at all, a little, somewhat, quite a bit, very much/completely). ThyPRO-39 is made up of 39 items in13 scales: goiter symptoms; hyperthyroid symptoms; hypothyroid symptoms; eye symptoms; tiredness; cognitive complaints; anxiety; depressivity; emotional susceptibility; impaired social life; impaired daily life; cosmetic complaints/appearance; and overall quality of life (QoL)-impact scale.