Data

Value

No.

%

Mean Age (y)

Mean ± SD

49.5 ± 8.5

Range

37 - 63

Sex

Male

26

76.5

Female

8

23.5

Mean duration of pain (M)

Mean ± SD

8.2 ± 3.5

Range

3 - 14

Targeted facet joint side (No)

Unilateral

22

27.2

Bilateral

59

72.8