Effects of Wonli Acupuncture Procedure in Patients with LSS: A Clinical, Retrospective Study

Table 2

Subject demographics.

Patients (N)	47
Age (years)	57.9 ± 10.0
Gender (M/F)	20/27
Duration of symptom (months)	45.4 ± 86.0
Oswestry disability index (%)	35.2 ± 19.9
Visual analogue scale	60.7 ± 23.1
Involved level
L4-5 (n)	45 (95.7%)
L3-4 (n)	27 (57.4%)
L5-S1 (n)	26 (55.3%)
Radicular pain
Unilateral (n)	39 (83%)
Bilateral	6 (12.8%)
Only back pain	2 (4.4%)