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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 (%)
Male Female 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