Table 1.
Demographic and clinical characteristics of the patients
| Pregabalin group (n = 49) | Control group (n = 47) | P value | |
|---|---|---|---|
| Age (years) | 68.1 ± 1.56 | 68.5 ± 1.48 | 0.983a |
| Sex | 0.484a | ||
| Male | 27 (55.1) | 22 (46.8) | |
| Female | 22 (44.9) | 25 (53.2) | |
| American Society of Anesthesiologists physical status | 0.997a | ||
| Level I | 25 (51.0) | 24 (51.1) | |
| Level II | 24 (49.0) | 23 (48.9) | |
| Current smoker | 4 (8.1) | 3 (6.4) | 0.881a |
| Manual laborer | 13 (26.5) | 12 (25.5) | 0.933a |
| Professional qualification (s) | 10 (20.4) | 9 (19.1) | 0.915a |
| Duration of pain, months | 23.0 ± 6.19 | 26.4 ± 8.48 | 0.745a |
| Affected spinal level | 0.889a | ||
| L3–L4 | 5 (10.2) | 5 (10.6) | |
| L4–L5 | 42 (85.7) | 39 (83.0) | |
| L5–S1 | 2 (4.1) | 3 (6.4) | |
| Number of spinal stenosis levels on magnetic resonance images | 0.679a | ||
| One level | 30 (61.2) | 31 (66.0) | |
| Two levels | 14 (28.6) | 12 (25.5) | |
| More than three levels | 5 (10.2) | 4 (8.5) | |
| Cause of lumbar spinal stenosis | 0.129a | ||
| Lumbar spondylitis | 38 (77.6) | 29 (61.7) | |
| Degenerative spondylolisthesis | 11 (22.4) | 18 (38.3) |
Data are shown as mean ± standard error or n (%)
aMann-Whitney U test