Table 4.

Sagittal endplate morphology in different sexes.

Segment	Uniformly concave type	Asymmetric concave type	Flat-bottomed concave type	Flat type	X2	p(Fisher's exact)	Cramer's V
L4 sup
male (n = 19)	4	5	2	8	_	0.14	0.41
female (n = 14)	5	2	5	2
L4 inf
male (n = 19)	7	6	4	2	_	0.61	0.28
female (n = 14)	8	3	3	0
L5 sup
male (n = 19)	1	11	1	6	_	0.83	0.19
female (n = 14)	1	6	2	5
L5 inf
male (n = 19)	4	11	1	3	_	0.94	0.10
female (n = 14)	4	7	1	2
S1 sup
male (n = 19)	0	2	1	16	_	1.00	0.17
female (n = 14)	0	1	0	13