Variable

Black (n = 26)

Mean

White (n = 36)

p-Value

Minimum

Maximum

Minimum

Maximum

Mean

Perimeter

89.12

123.71

103.50 (8.47)

91.27

119.21

105.88 (5.79)

1.314

0.194

15˚

12.61

17.95

15.55 (1.56)

10.96

20.01

16.19 (1.73)

1.493

0.141

30˚

10.39

15.09

12.85 (1.22)

8.89

15.07

12.68 (1.15)

−0.559

0.578

45˚

9.15

13.17

11.21 (1.03)

8.38

13.08

10.92 (1.00)

−1.118

0.268

60˚

8.98

12.76

10.55 (0.93)

7.44

11.99

10.17 (0.97)

−1.538

0.129

75˚

9.00

14.23

10.68 (1.15)

7.21

12.05

10.18 (1.03)

−1.824

0.073

90˚

9.59

15.87

11.47 (1.29)

8.02

12.61

10.64 (1.05)

−2.790

0.007^*

105˚

11.20

16.88

12.97 (1.11)

9.61

14.00

11.62 (1.18)

−4.572

0.000^*

120˚

12.54

17.70

14.86 (1.21)

11.04

16.84

13.65 (1.43)

−3.499

0.001^*

135˚

15.20

19.33

17.32 (1.20)

13.92

19.10

16.37 (1.25)

−2.980

0.004^*

150˚

14.63

20.86

18.50 (1.82)

16.84

20.86

19.03 (1.13)

1.402

0.166

165˚

10.91

20.16

17.61 (1.96)

14.00

21.69

18.77 (1.47)

2.652

0.010^*

180˚

10.98

17.10

14.27 (1.47)

12.00

18.49

15.05 (1.42)

2.092

0.041^*

195˚

13.81

20.44

16.99 (1.74)

15.56

21.60

18.12 (1.45)

2.78

0.007^*

210˚

16.05

22.22

18.88 (1.52)

15.96

22.69

19.16 (1.60)

0.699

0.487

225˚

14.92

21.22

17.67 (1.58)

13.01

20.84

16.98 (1.75)

−1.598

0.115

240˚

12.77

19.22

15.24 (1.48)

10.60

18.25

14.19 (1.61)

−2.615

0.011^*

255˚

11.24

17.11

13.02 (1.30)

9.19

15.97

12.14 (1.46)

−2.432

0.018^*

270˚

10.21

15.86

11.78 (1.22)

8.26

14.27

11.09 (1.30)

−2.126

0.038^*

315˚

9.20

14.68

11.71 (1.11)

9.00

14.75

11.29 (1.20)

−1.404

0.165

330˚

9.54

15.95

13.31 (1.43)

9.10

16.73

13.03 (1.45)

−0.759

0.451

345˚

13.32

19.29

16.22 (1.70)

12.92

19.53

16.57 (1.60)

0.824

0.413

360˚

15.00

20.00

17.65 (1.29)

16.10

21.00

18.57 (1.25)

2.829

0.006^*