Table 1 Assessment of the MC

Clear upper wall

(%)

79/81

(97.5)

70/81

(86.4)

70/81

(86.4)

58/81

(71.6)

36/81

(44.4)

29/80

(36.2)

55/80

(68.8)

71/80

(88.8)

70/80

(87.5)

77/80

(96.2)

Clear lower wall

(%)

79/81

(97.5)

70/81

(86.4)

70/81

(86.4)

58/81

(71.6)

36/81

(44.4)

29/80

(36.2)

55/80

(68.8)

71/80

(88.8)

70/80

(87.5)

77/80

(96.2)

Height 1 ± SD

2.70 ± 0.55

2.40 ± 0.45

3.55 ± 1.73

1.75 ± 0.74

1.19 ± 0.51

1.17 ± 0.29

1.85 ± 0.88

3.31 ± 1.58

2.51 ± 0.44

2.69 ± 0.48

95% CI

2.58, 2.82

2.29, 2.51

3.14, 3.96

1.56, 1.94

1.02, 1.36

1.06, 1.28

1.62, 2.08

2.94, 3.68

2.41, 2.61

2.58, 2.8

Width 1 ± SD

2.28 ± 0.45

2.08 ± 0.41

3.32 ± 1.74

1.73 ± 0.71

1.12 ± 0.53

1.25 ± 0.44

1.73 ± 0.85

2.95 ± 1.47

2.16 ± 0.41

2.31 ± 0.34

95% CI

2.18, 2.38

1.98, 2.18

2.91, 3.73

1.55, 1.91

0.95, 1.29

1.09, 1.41

1.51, 1.95

2.61, 3.29

2.06, 2.26

2.23, 2.39

Height 2 ± SD

7.19 ± 2.56

9.80 ± 2.43

8.67 ± 2.76

8.76 ± 2.85

9.07 ± 3.47

9.54 ± 2.94

8.87 ± 2.94

8.78 ± 2.95

9.87 ± 2.71

7.21 ± 2.46

95% CI

6.63, 7.75

9.23, 10.37

8.02, 9.32

8.03, 9.49

7.94, 10.2

8.47, 10.61

8.09, 9.65

8.09, 9.47

9.24, 10.5

6.66, 7.76

Height 3 ± SD

8.72 ± 1.88

8.12 ± 1.62

9.07 ± 1.71

0.35 ± 1.65

9.25 ± 1.94

8.72 ± 1.69

9.95 ± 1.48

9.09 ± 2.12

7.99 ± 1.72

8.76 ± 2.16

95% CI

8.31, 9.13

7.74, 8.5

8.67, 9.47

9.93, 10.77

8.62, 9.88

8.1, 9.34

9.56, 10.34

8.6, 9.58

7.59, 8.39

8.28, 9.24

Height 4 ± SD

4.49 ± 2.63

7.39 ± 2.41

5.12 ± 3.05

7.02 ± 2.83

7.89 ± 3.50

8.37 ± 2.89

7.02 ± 2.92

5.47 ± 3.29

7.35 ± 2.66

4.52 ± 2.43

95% CI

3.91, 5.07

6.83, 7.95

4.41, 5.83

6.29, 7.75

6.75, 9.03

7.32, 9.42

6.25, 7.79

4.7, 6.24

6.73, 7.97

3.98, 5.06

Width 2 ± SD

7.19 ± 1.21

6.13 ± 1.15

3.33 ± 2.33

3.02 ± 0.98

4.00 ± 1.23

4.60 ± 1.11

3.20 ± 0.96

3.54 ± 2.20

6.04 ± 1.09

7.15 ± 1.31

95% CI

6.92, 7.46

5.86, 6.4

2.78, 3.88

2.77, 3.27

3.6, 4.4

4.2, 5

2.95, 3.45

3.03, 4.05

5.78, 6.3

6.86, 7.44

Width 3 ± SD

2.66 ± 0.81

2.83 ± 0.99

3.82 ± 1.54

5.16 ± 1.50

4.50 ± 1.57

4.74 ± 1.08

5.06 ± 1.29

3.92 ± 1.62

2.91 ± 1.07

2.66 ± 0.92

95% CI

2.48, 2.84

2.6, 3.06

3.46, 4.18

4.77, 5.55

3.99, 5.01

4.35, 5.13

4.72, 5.4

3.54, 4.3

2.66, 3.16

2.45, 2.87