Table 2. Thyroid function, ovarian reserve markers and antithyroid antibodies presence between TAI and control groups.
TAI Control p value
TSH (mUI/L), median (IQR) 1.8 (1.1, 2.5) 1.8 (1.4, 2.5) 0.48*
Free T4 (ng/dL), mean ± SD 1.2±0.2 1.1±0.2 0.17**
AMH (ng/mL), median (IQR) 1.0 (0.6, 2.9) 1.5 (0.6, 3.1) 0.37*
AFC (number), median (IQR) 10 (7, 16) 11 (6, 19) 0.68*
Only anti-TPO positive (%) 56% NA NA
Only anti-Tg positive (%) 19% NA NA
Both anti-TPO and anti-Tg positive (%) 25% NA NA

TSH=thyroid-stimulating hormone; IQR=interquartile range; T4=thyroxine;
SD=standard deviation; AMH=anti-Müllerian hormone; AFC=antral follicle count; Anti-TPO=antithyroperoxidase;
Anti-Tg=antithyroglobulin; NA=not applicable.
by Mann Whitney test; by Student’s t test; by Fischer’s exact test.