Sex Determination Using Inion-Opistocranium-Asterion (IOA) Triangle in Nigerians’ Skulls

Table 6

Sexual dimorphism ratio.

Parameters	Male mean (mm)	Female mean (mm)	Sexual dimorphism ratio = M. mean/F. mean
Inion-opistocranium	30.03	22.34	1.34
Inion-asterion	64.16	58.61	1.09
Opistocranium-asterion	70.41	61.30	1.15