Table 5. Multivariate discriminant analysis of measurements related to specific non-bilateral maxillary variables for correct assignment by sex.

Measurements, Fisher's linear discriminant function coefficients, and equations	Fisher Coefficient ♂	Fisher Coefficient ♀	Canonical discriminant functions and classification results
Maxillary complex length	4.707	4.401	n = 212
Maximum inter-maxillary width	1.600	1.533	Box’s M value = 7.651; significance = 0.679
Length of NPC at sagittal plane	1.382	1.130	Wilks’ λ = 0.680; significance = <0.001
Minimum anterior-superior buccal bone thickness	0.337	0.170	Eigenvalue = 0.471; canonical correlation = 0.566
Constant	-191.746	-166.948	Correct prediction % ♂ = 67.40
Equations ♂ = 4.707*Maxillary complex length + 1.600*Maximum maxillary transverse width + 1.382*Length of NPC at sagittal plane + 0.337*Minimum anterior-superior buccal bone thickness – 191.746 ♀ = 4.401*Maxillary complex length + 1.533*Maximum maxillary transverse width + 1.130*Length of NPC at sagittal plane + 0.170*Minimum anterior-superior buccal bone thickness – 166.948			Correct prediction % after cross-validation ♂ = 66.30
			Correct prediction % ♀ = 87.30
			Correct prediction % after cross-validation ♀ = 85.70
			Mean correct prediction % = 79.20
			Mean correct prediction % after cross-validation = 77.80

Abbreviations: NPC, nasopalatine canal; IF, incisive foramen