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Table 2 Summary statistics of the morphometry of hair by ethnicity, sex, and head regions

From: Preliminary study on morphometric analysis of the human scalp hair for discrimination of ethnic Malay and ethnic Chinese in Malaysia

Ethnicity

Sex

Head region

Mean ± SD

(n = 1000)

(n = 500)

(n = 250)

HW (um)

SLD (um)

MI

Malays

Male

Upper

81.90 ± 18.82

8.22 ± 0.96

0.19 ± 0.08

Lower

80.65 ± 23.47

8.22 ± 1.05

0.18 ± 0.08

Female

Upper

81.94 ± 16.32

8.45 ± 1.08

0.19 ± 0.07

Lower

80.70 ± 16.38

8.63 ± 1.05

0.19 ± 0.07

Chinese

Male

Upper

87.30 ± 19.50

7.54 ± 0.83

0.23 ± 0.09

Lower

87.02 ± 17.84

7.66 ± 0.78

0.21 ± 0.09

Female

Upper

86.03 ± 16.63

7.52 ± 0.66

0.23 ± 0.09

Lower

86.53 ± 15.95

7.55 ± 0.68

0.24 ± 0.09

  1. HW hair width, SLD scale layer difference, MI medullary index, n sample size