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Table 7 Descriptive statistics and demarking points (in mm) for both ears among Nigerian ethnic groups

From: Ear morphology and morphometry as potential forensic tools for identification of the Hausa, Igbo and Yoruba populations of Nigeria

Variables Hausa Igbo Yoruba One-way ANOVA
Mean SD Min Max Demarking point Mean SD Min Max Demarking point Mean SD Min Max Demarking point F2, 304 P value
Right ear
Ear Length 59.38 4.19 50.6 68.1 F < 59.46 < M 62.68 5.04 47.6 73.4 F < 62.52 < M 60.17 4.81 45.7 69.3 F < 60.19 < M 13.800 0.000
Ear Width 31.74 4.25 24.8 41.4 F < 31.90 < M 31.93 3.83 26.4 38.9 F < 31.80 < M 31.99 4.40 24.5 40.8 F < 31.97 < M 0.091 0.913**
Lobule Height 18.00 3.13 11.0 24.6 F < 18.02 < M 18.03 3.58 10.1 24.3 F < 18.27 < M 20.72 3.01 12.4 27.0 F < 20.72 < M 23.816 0.000
Lobule Width 16.28 1.93 12.0 21.5 F < 16.16 < M 15.60 2.61 10.1 23.5 F < 15.51 < M 19.02 3.28 11.5 25.8 F < 19.02 < M 47.891 0.000
Concha Length 27.41 1.02 25.1 30.1 F < 27.43 < M 28.69 1.64 24.6 39.0 F < 28.67 < M 31.07 1.65 26.1 33.3 F < 31.09 < M 154.269 0.000
Left ear
Ear Length 60.04 4.36 51.1 68.5 F < 60.07 < M 62.37 5.07 47.0 72.3 F < 62.27 < M 59.64 4.71 45.7 68.0 F < 59.66 < M 10.405 0.000
Ear Width 32.14 3.69 25.0 39.8 F < 32.21 < M 31.89 4.07 25.4 40.5 F < 31.80 < M 31.86 4.56 23.1 41.5 F < 31.85 < M 0.129 0.879**
Lobule Height 17.86 3.10 10.2 23.6 F < 17.88 < M 17.94 3.54 9.2 24.1 F < 18.16 < M 20.92 3.02 12.4 27.1 F < 20.90 < M 29.926 0.000
Lobule Width 16.18 1.94 11.7 21.6 F < 16.05 < M 15.71 2.62 10.4 23.2 F < 15.57 < M 18.87 3.28 11.2 25.6 F < 18.87 < M 41.983 0.000
Concha Length 27.35 1.24 23.5 30.3 F < 27.34 < M 28.58 1.32 25.9 32.1 F < 28.56 < M 31.14 1.68 26.1 33.6 F < 31.17 < M 180.837 0.000
  1. SD, standard deviation
  2. **Not statistically significant (p > 0.05)