Association between Vitiligo and Thyroid Autoimmunity

Table 3

Frequency of thyroid autoantibodies in the study group.

	Anti-Tg (threshold value 115 IU/mL)		Anti-TPO (threshold value 34 IU/mL)
Group	Negative 𝑛 (%)	Positive 𝑛 (%)	Negative 𝑛 (%)	Positive 𝑛 (%)
Vitiligo	24 (73)	9 (27)	25 (76)	8 (24)
Control	32 (97)	1 (3)	32 (97)	1 (3)
Total	56 (85)	10 (15)	57 (86)	9 (14)
Difference 𝑛 (%)	8 (24)		7 (21)
𝜒^2,𝑃	𝜒^2=5.775,𝑃=.0163		𝜒^2=4.632,𝑃=.0314