Research Article

The Elevated Serum Level of IFN-γ in Patients with Failed Back Surgery Syndrome Remains Unchanged after Spinal Cord Stimulation

Table 2

Characteristics of patients and controls.

Group 0
Group 1
Group 2
Controls
Group 0 vs. controls
value

Age
0,807
Gender
 Female (F)F: 13F: 8F: 5F: 120,772
 Male (M)M: 11M: 9M: 7M: 12
Number of operations
Time of pain