Table 1.

Correlation of B7-H1 expression by melanocytes with clinicopathologic features in 150 patients.

	Number of patients			P*
	Total	B7-H1+ (≥5%)	B7-H1− (<5%)
All patients	150	57	93
Gender
Male	76	28	48
Female	74	29	45	0.867
Lesion type
Nevus	40	14	26
Melanoma in situ	11	6	5
Invasive primary melanoma	43	13	30
Metastasis	56	24	32	0.378

^*χ² Analysis.