Table 1.

Characteristics of the database.

		MM		IN		CN		JN
		n	%	n	%	n	%	n	%
Sex	Male	114	45.2	45	23.9	39	32.8	45	31.7
	Female	138	54.8	143	76.1	80	67.2	97	68.3
Age	Mean	55.5	—	29.7	—	19.8	—	31	—
	SD	14.0	—	11.6	—	10.4	—	13.1	—
Facility	CSUXH	192	76.2	188	100.0	119	100.0	142	100.0
	TCGA	60	23.8	—	—	—	—	—	—

MM, melanoma; IN, intradermal nevi; CN, compound nevi; JN, junctional nevi; SD, standard deviation; CSUXH, Central South University Xiangya Hospital; TCGA, The Cancer Genome Atlas.