Gender

Cervical

Thoracic

Lumbar

Male

20

7

44

Female

10

8

31

Total

30

15

75

Mean age (years)

51.22 ± 15.71

43.87 ± 19.85

51.88 ± 15.06

Mean height (m)

1.63 ± 0.13

1.62 ± 0.14

1.65 ± 0.11

Mean weight (kg)

75.60 ± 19.89

71.40 ± 15.37

76.40 ± 12.19