Table 3 Mean cross sectional area (CSA) of paraspinal muscles (± SD) in the stenosis and control groups by sex
From: Paraspinal muscles density: a marker for degenerative lumbar spinal stenosis?
Sex | Muscle | Mean CSA (mm2) ± SD | P value | |
|---|---|---|---|---|
|  |  | Control (N = 90) | DLSS (N = 80) |  |
Male | Psoas | 1026 ± 276 | 1097 ± 234 | 0.042 |
Multifidus | 589 ± 128 | 569 ± 111 | 0.331 | |
Erector spinae | 1662 ± 394 | 1793 ± 369 | 0.011 | |
|  |  | N = 90 | N = 85 |  |
Female | Psoas | 628 ± 168 | 698 ± 145 | 0.076 |
Multifidus | 477 ± 117 | 524 ± 121 | 0.163 | |
Erector spinae | 1345 ± 338 | 1540 ± 314 | 0.014 | |