Table 5.
Association of patient characteristics and muscle parameters with back pain severity as measured with VAS
| Subject characters | Univariable analysis | Multiple logistic regression | ||
|---|---|---|---|---|
| Coefficient, 95% CI | p value | Coefficient, 95% CI | p value | |
| Gender | − 0.645 (− 1.556, 0.266) | 0.163 | ||
| Age | − 0.020 (− 0.069, 0.029) | 0.418 | ||
| BMI | 0.003 (− 0.107, 0.113) | 0.955 | ||
| Back pain duration | 0.005 (− 0.0003, 0.011) | 0.062 | ||
| Leg pain duration | 0.002 (− 0.006, 0.010) | 0.694 | ||
| Number of levels involved | 0.147 (− 0.821, 1.116) | 0.763 | ||
| PMI | − 0.793 (− 1.060, − 0.527) | < 0.001 | − 0.666 (− 0.936, 0.368) | < 0.001 |
| HU | − 0.158 (− 0.235, − 0.081) | < 0.001 | − 0.075 (− 0.156, 0.005) | 0.067 |
| MPM | − 1.054 (− 5.173, 3.065) | 0.613 | ||
Bold indicates statistical significance
VAS visual analogue scale; CI confidence interval; BMI body mass index; PM psoas major muscle mass index; HU Hounsfield units; MPM morphological change in the psoas major