Sex estimation based on the anthropometric measurements of thyroid cartilage using discriminant analysis

Cameriere, Roberto; Zolotenkova, Galina V.; Kuznetsov, Igor A.; Scendoni, Roberto; Pigolkin, Yuri I.

doi:10.1186/s41935-021-00219-5

Egyptian Journal of Forensic Sciences

Table 7 Univariate and stepwise discriminant analyses

From: Sex estimation based on the anthropometric measurements of thyroid cartilage using discriminant analysis

Equation		Group centroid		Wilks’ lambda	Correct prediction rates (%)
Equation		Male	Female	Wilks’ lambda	Male	Female	Total
Univariate analysis	7530 (AA OUTER) – 9257	0.274	− 0.274	0.929	54	58	56
	6230 (AA INNER) – 7428	0.342	− 0.342	0.893	54	56	55
	39,077 (ВВ OUTER) – 27,833	0.589	− 0.589	0.739	76	70	73
	2775 (BB INNER) – 5752	0.463	− 0.463	0.821	70	60	65
	47,357 (СС OUTER) – 30,110	0.940	− 0.940	0.526	86	90	88
	136,139 (CC INNER) – 52,968	1.254	− 1.254	0.384	90	98	94
	34,980 (DD OUTER) – 21,926	0.982	− 0.982	0.504	82	94	88
	28,701 (DD INNER) – 18,382	1.577	− 1.577	0.283	94	98	96
	3224 (AD DEX) – 9163	1.447	− 1.447	0.319	94	92	93
	10,610 (AD SIN) – 15,087	1.267	− 1.267	0.379	92	88	90
	8919 (AB DEX) – 3144	1.144	− 1.144	0.428	88	88	88
	7840 (AB SIN) – 2354	0.686	− 0.686	0.675	80	86	83
	3804 (CD DEX) + 1687	0.355	− 0.355	0.886	64	66	65
	5198 (CD SIN) + 2292	0.645	− 0.645	0.702	66	84	75
	17,519 (BE DEX) – 19,958	2.257	− 2.257	0.161	98	100	99
	18,411 (BE SIN) – 22,370	2.725	− 2.725	0.117	100	98	99
	12,834 (CF DEX) – 13,040	0.783	− 0.783	0.615	78	86	82
	14,396 (CF SIN) – 13,366	0.736	− 0.736	0.644	78	84	81
	9422 (EF) – 4186	1.887	− 1.887	0.216	100	94	97
	0.001(Angle) – 8164	− 1.990	1.990	0.198	90	100	95
	6439 (GH DEX) – 7839	1.936	− 1.936	0.207	100	98	99
	9418 (GH SIN) – 10,211	1.932	− 1.932	0.208	100	96	98
	15,119 (KL) – 17,778	2.780	− 2.780	0.113	100	98	99
	18,001 (MN) – 21,041	3.049	− 3,049	0.095	100	98	99
	21,171 (DEX thickness) + 17,570	0.980	− 0.980	0.505	70	92	81
	16,691 (SIN thickness) + 14,287	0.892	− 0.892	0.552	70	90	80
	16,338 (FP) – 10,097	1.190	− 1.190	0.409	84	96	90
	5963 (Q) – 7683	0.837	− 0.837	0.583	88	74	81
	8298 (R) + 9046	0.717	− 0.717	0.656	84	72	78
	17,296 (S) + 12,723	0.477	− 0.477	0.811	76	64	70
	7481 (T) – 7855	0.491	− 0.491	0.803	72	64	68
Stepwise analysis	– 22,949 (СС OUTER) + 15,596 (DD INNER) − 3198 (AD SIN) + 3452 (AB SIN) + 4,004 (EF) – 0.0001 (Angle) + 3581 (GH SIN) + 10,633 (KL) + 6100 (FP) + 1545 (R) – 5317	6.053	− 6.053	0.026	100	100	100

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