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Table 2 Demographic characteristics of different groups

From: Rate of presence of 11 thoracic vertebrae and 6 lumbar vertebrae in asymptomatic Chinese adult volunteers

 

Group

Total

7C + 11T + 5L

7C + 11T + 6L

7C + 12T + 6L

7C + 12T + 5L

Number

12

5

11

265

293

Male/female

1/11

1/4

8/3

101/164

111/182

Age

35.9 ± 14.2 (23~70)

42.8 ± 9.9 (29~53)

40.2 ± 13.9 (24~63)

40.9 ± 12.8 (20~74)

40.8 ± 12.8 (20~74)

Weight (kg)

51.6 ± 8.7** (41~67)

58.7 ± 2.7 (55~62)

60.5 ± 8.9 (49~75)

61.5 ± 9.6 (40~95)

61.1 ± 9.6 (40~95)

Height (cm)

160 ± 6.0* (155~175)

163 ± 3.8 (158~167)

167 ± 8.0 (154~180)

164 ± 7.0 (148~186)

164 ± 7.0 (148~186)

BMI (kg/m2)

19.9 ± 2.2** (17.1~22.6)

22.1 ± 1.5 (21.2~24.8)

21.6 ± 2.6 (16.9~25.3)

22.8 ± 2.7 (16.2~32.9)

22.6 ± 2.8 (16.2~32.9)

  1. The range is shown in parentheses; “7C + 12T + 5L” stands for volunteers with normal number of vertebrae
  2. C cervical vertebrae, T thoracic vertebrae, L lumbar vertebrae
  3. *Compared with group 7C + 12T + 5L, p < 0.05
  4. **Compared with group 7C + 12T + 5L, p < 0.01