Table 2. The difference between male and female

Value	Male	Female	p-value
Keros classification
I	67 (20.9)	39 (14.6)	0.022
II	205 (64.1)	200 (74.6)
III	48 (15.0)	29 (10.8)
Gera classification
I	24 ( 7.5)	18 ( 6.7)	0.167
II	252 (78.8)	226 (84.3)
III	44 (13.8)	24 ( 9.0)

Data are presented as n (%).