Table 6 The frequency distribution of cervical segments corresponding to each plane in 600 healthy subjects
Level | SBTC | IBTC | IBCC | ||||||
|---|---|---|---|---|---|---|---|---|---|
Male* (%) | Female (%) | All (%) | Male* (%) | Female (%) | All (%) | Male* (%) | Female (%) | All (%) | |
C3/4 | 8 (2.1) | 4 (1.9) | 12 (2.0) | 0 | 0 | 0 | 0 | 0 | 0 |
C4 | 138 (35.4) | 125 (59.5) | 263 (43.8) | 4 (1.0) | 0 | 4 (0.7) | 0 | 0 | 0 |
C4/5 | 142 (36.4) | 62 (29.5) | 204 (34.0) | 38 (9.7) | 78 (37.1) | 116 (19.3) | 0 | 0 | 0 |
C5 | 74 (19.0) | 19 (9.0) | 93 (15.5) | 180 (46.2) | 101 (48.1) | 281 (46.8) | 0 | 20 (9.5) | 20 (3.3) |
C5/6 | 16 (4.1) | 0 | 16 (2.7) | 102 (26.2) | 31 (14.8) | 133 (22.2) | 16 (4.1) | 61 (29.0) | 77 (12.8) |
C6 | 12 (3.1) | 0 | 12 (2.0) | 50 (12.8) | 0 | 50 (8.3) | 134 (34.4) | 95 (45.2) | 229 (38.2) |
C6/7 | 0 | 0 | 0 | 12 (3.1) | 0 | 12 (2.0) | 134 (34.4) | 34 (16.2) | 168 (28.0) |
C7 | 0 | 0 | 0 | 4 (1.0) | 0 | 4 (0.7) | 82 (21.0) | 0 | 82 (13.7) |
C7/T1 | 0 | 0 | 0 | 0 | 0 | 0 | 16 (4.1) | 0 | 16 (2.7) |
T1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 (2.1) | 0 | 8 (1.3) |
Total | 390 (100) | 210 (100) | 600 (100) | 390 (100) | 210 (100) | 600 (100) | 390 (100) | 210 (100) | 600 (100) |