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

Table 1

Maximum, minimum, geometric mean, coefficient of variation, mean, and SEM of inion-opistocranium length, left inion-asterion length (bracket)^#,and right inion-asterion length [parentheses]^∞ (mm).

Sex	Mean ± SEM	Coefficient of variation	Geometric mean	Maximum	Minimum
Male (mm)	30.03±0.50	16.01%	29.67	46.59	22.21
	(64.69±0.40)^#	(5.91%)^#	(64.58)^#	(75.49)^#	(56.94)^#
	[63.64±0.40]^∞	[6.03%]^∞	[63.53]^∞	[74.17]^∞	[55.06]^∞
Female (mm)	22.34±2.10^∗	29.68%	21.47	32.22	14.10
	(59.74±0.65^∗)^#	(3.47%)^#	(59.70)^#	(61.32)^#	(54.63)^#
	[57.48±1.56^∗]^∞	[8.59%]^∞	[57.27]^∞	[61.22]^∞	[47.76]^∞

^∗𝑃<0.05 statistically significant from male.
Numbers in brackets represent left inion-asterion length^# and numbers in parentheses represent right inion-asterion length [parentheses]^∞ (mm).