Gene Expression Differences Predict Treatment Outcome of Merkel Cell Carcinoma Patients

Table 3

Immunohistochemistry results for KIF3A, KIT, KRT20, and MUC1. Results were grouped into absent/weak and intermediate/intense staining. Fisher’s exact probability test compared good and poor prognosis results.

	Good prognosis	Moderate prognosis	Poor prognosis	𝑃 value
KIF3A
Absent/weak	6	3	8	—
Intermediate/intense	0	0	0
KIT
Absent/weak	4	2	7	𝑃≤0.54
Intermediate/intense	2	1	1
KRT20
Absent/weak	6	1	3	𝑃<0.03
Intermediate/intense	0	2	5
MUC1
Absent/weak	6	3	8	—
Intermediate/intense	0	0	0

(—: 𝑃 value not calculated due to 𝑛=0 in intermediate/intense class).