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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