Table 1.

Prevalence of C4d staining categories of PTCs stained by IF or IHC

C4d Staining Category	Prevalence IF	Prevalence IHC
Negative	85 (81.7)	111 (94.1)
Focal positive	6 (5.8)	2 (1.7)
Diffuse positive	13 (12.5)	5 (4.2)
Total	104 (100)	118 (100)

Data presented as n (%).