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Table 3 Average values and percentiles for all measured radiographic parameters

From: Normal radiological anatomy of thyroid cartilage in 600 Chinese individuals: implications for anterior cervical spine surgery

 

Mean (mm)

Min (mm)

Max (mm)

Percentiles

5

25

50

75

95

D1

44.4 ± 5.0

34.0

60.0

36.1

41.1

44.0

47.3

53.2

D2

41.5 ± 4.6

31.2

54.5

34.3

38.3

41.3

45.1

49.4

D3

26.5 ± 3.8

18.8

34.5

20.4

23.2

27.1

29.3

32.6

V1

27.5 ± 2.6

21.4

35.5

23.1

25.9

27.4

29.0

31.9

V2

29.1 ± 3.2

16.2

40.0

24.8

27.1

28.5

30.4

35.9

V3

31.6 ± 3.4

24.1

41.0

26.4

29.1

31.6

33.7

37.3