Table 2 A comparison between the PWS measurements and the apparently normal Egyptian school children aged 13–14 years

1

Head circumference

54.0

[50–59.5]

54

\(-\) 0.1

\(-\) 0.02

2

Maxillary arc

27.7

[25.5–29.5]

29

4.6

1.34

3

Left maxillary arc

14.0

[13–15.7]

14.7

5.0

1.20

4

Right maxillary arc

13.9

[12.6–15.5]

14.3

2.7

0.59

5

Mandibular arc

29.1

[26.2–31.2]

29.5

1.4

0.33

6

Left mandibular arc

14.7

[13.1–15.9]

15.8

7.5

1.75

7

Right mandibular arc

14.6

[12.8–16.9]

13.7

\(-\) 6.2

\(-\) 1.08

8

Left maxillary depth

12.5

[11.7–14]

12.3

\(-\) 1.5

\(-\) 0.37

9

Right maxillary depth

12.5

[11.7–14.1]

12

\(-\) 4.4

\(-\) 0.97

10

Left mandibular depth

13.5

[12.3–14.5]

14.3

5.6

1.60

11

Right mandibular depth

13.7

[12.5–15.7]

14.3

4.5

0.85

12

Left mandibular body length

9.5

[8.8–10.65]

10.7

12.9

2.48

13

Right mandibular body length

9.4

[8.5–10.5]

10.8

15.1

2.95

14

Left mandibular ramus height

5.8

[4.5–6.5]

6.2

7.2

0.91

15

Right mandibular ramus height

5.9

[4.9–6.6]

6

2.5

0.35

16

Morphological face height

11.7

[10.2–13]

11.2

\(-\) 3.9

\(-\) 0.73

17

Upper face height

7.7

[7–8.6]

6.5

\(-\) 16.1

\(-\) 3.18

18

Lower face height

6.4

[5.6–7.6]

6.2

\(-\) 3.4

\(-\) 0.47

19

Anterior mandibular height

4.5

[3.8–5.2]

4.8

5.9

0.68

20

Chin height

2.7

[2.1–3.5]

3.2

19.1

1.47

21

Inter-canthal width

3.3

[2.7–4]

3.2

\(-\) 2.3

\(-\) 0.25

22

Outer-canthal width

9.6

[8.7–10.6]

9.1

\(-\) 5.4

\(-\) 0.96

23

Nose height

5.9

[5.1–6.5]

4.9

\(-\) 16.4

\(-\) 2.70

24

Nose width

3.4

[3–4]

3.4

\(-\) 1.3

\(-\) 0.18

25

Philtrum width

1.1

[0.8–1.5]

1.1

\(-\) 3.3

\(-\) 0.24

26

Philtrum length

1.2

[0.8–1.5]

1.2

\(-\) 1.4

\(-\) 0.11

27

Labial fissure width

4.8

[4.2–5.6]

4.5

\(-\) 6.4

\(-\) 0.92

28

Upper lip height

2.0

[1.6–2.5]

2.5

22.3

2.33