Upregulation of TSHR, TTF-1, and PAX8 in Nodular Goiter Is Associated with Iodine Deficiency in the Follicular Lumen

Table 3

Immunohistochemistry detecting PAX8 in control and nodular goiter groups.

Group	Staining result
	Cases ()	Negative	Positive	Strong positive	Positive rate (%)	Strong positive rate (%)
Control	30	0	30	11	100	36.7
Nodular goiter	30	0	30	23	100	76.7

⁢.