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Table 4 Result of simple regression analysis between the height and head length 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

71.793

5.041

Male

0.43

0.18

0.001

6.518

76.239

4.743

Female

0.53

0.28

0.001

5.244

87.767

4.234

Esan

Combined

0.41

0.17

0.001

7.59

96.535

3.798

Male

0.16*

0.03

0.120

7.29

147.27

1.324

Female

0.35

0.12

0.001

5.24

115.629

2.542

Kalabari

Combined

0.33

0.11

0.001

6.46

106.312

3.245

Male

0.08*

0.01

0.462

6.21

156.812

0.755

Female

0.28

0.08

0.007

4.76

123.333

2.159

Ogbia

Combined

0.54

0.29

0.001

4.49

91.217

4.077

Male

0.50

0.25

0.001

4.24

100.985

3.628

Female

0.33

0.11

0.002

4.30

119.626

2.461

Urhobo

Combined

0.43

0.19

0.001

7.67

81.41

4.61

Male

0.20

0.04

0.044

7.30

132.41

2.11

Female

0.12*

0.01

0.203

5.66

143.28

1.01

  1. aStandard error of estimates
  2. *Not significant