Table 3 Summary statistics of the reference values produced by three observers with the corresponding data of visual estimates and digital image analysis, n = 164

35.0

40.2

25.3

2.0

0.6

98.1

30.1

36.5

20.2

1.6

6.4

93.0

24.1

31.1

21.1

1.6

1.5

90.5

20.4

25.9

18.1

1.4

2.1

85.7

30

37.2

27.4

2.1

2

95

28.4

36.2

25.6

2.0

2.2

96.4

15

24.3

23.6

1.8

5

95

40

43.4

29.6

2.3

2

98

37.5

44.1

30.0

2.3

1

99

22

31.6

24.3

1.9

1

95

30

37.7

27.7

2.2

1

100

2,372

2,658.7

1,390.4

108.6

464

7,452

2,150.5

2,293.2

796.8

62.2

752

4,302

1,920.5

2,022.7

670.1

52.3

1,012

3,788

4,203.5

4,385.0

1,420.2

110.9

1,640

7,939