Table 2. Demographic features.

	Benign patients			Malign patients			Total
	n	%	Mean±SD	n	%	Mean±SD	n	%	Mean±SD
Female	45	49.5		38	71.7		83	58.3
Male	46	50.5		15	28.3		61	41.7
The average age (year)			56.0±13.2			59.1±10.6			57.2±12.4
SD: Standard deviation.