Table 4: Comparison of the classification according to gender.

Women Men P value*

Type Ia871130.016
Type Ib4788<0.001**
Type IIa34410.186
Type IIb22280.193
Type IIIa21150.241
Type IIIb41420.42
Type IV24170.212
Lumbarization38250.088
Sacralization276344<0.001**
LSTV3143690.002**

LSTV: lumbosacral transitional vertebra.
Chi-square test.
Statistically significant.