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Table 6 Result of simple regression analysis between height and head width in all the ethnic groups

From: Height estimation from head dimensions in South-South Nigeria

Ethnicity

Group

R

R2

p value

SEE

Intercept

Slope

Bekwara

Combined

0.54

0.29

0.001

5.97

90.160

4.961

Male

0.56

0.31

0.001

5.98

85.258

5.398

Female

0.47

0.22

0.001

5.45

106.665

3.731

Esan

Combined

0.35

0.12

0.001

7.81

120.414

3.170

Male

0.03*

0.00

0.777

7.39

169.058

0.207

Female

0.33

0.11

0.001

5.28

113.815

3.369

Kalabari

Combined

0.31

0.10

0.001

6.49

118.586

3.289

Male

0.23

0.05

0.034

6.07

143.242

1.877

Female

0.40

0.16

0.001

4.55

107.732

3.784

Ogbia

Combined

0.49

0.24

0.001

4.66

86.273

5.415

Male

0.14*

0.02

0.191

4.84

141.175

1.891

Female

0.54

0.29

0.001

3.83

91.338

4.977

Urhobo

Combined

0.34

0.11

0.001

7.99

104.68

4.22

Male

0.04*

0.00

0.658

7.44

171.79

0.10

Female

0.05*

0.00

0.575

5.69

164.99

− 0.72

  1. aStandard error of estimates
  2. *Not significant