Table 3.
A matrix of the correlations.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) Age | — | ||||||||||||||||||||
| (2) Gender | 0.174 | — | |||||||||||||||||||
| (3) Height | −0.403∗∗ | −0.717∗∗∗ | — | ||||||||||||||||||
| (4) Weight | −0.393∗∗∗ | −0.479∗∗∗ | 0.664∗∗∗ | — | |||||||||||||||||
| (5) BMI | −0.193∗ | −0.028 | 0.031 | 0.732∗∗∗ | — | ||||||||||||||||
| (6) Duration of LSS symptoms | 0.130 | 0.309∗∗∗ | −0.227∗∗∗ | −0.159 | −0.020 | — | |||||||||||||||
| (7) Classification of pain by course | 0.089 | 0.218∗ | −0.134 | −0.090 | −0.007 | 0.777∗∗∗ | — | ||||||||||||||
| (8) Classification of LSS by site of symptom appearance | 0.264∗∗∗ | −0.069 | 0.000 | −0.034 | −0.079 | 0.154 | 0.272∗∗ | — | |||||||||||||
| (9) Clinical phenotype of LSS | −0.090 | 0.060 | −0.040 | −0.047 | −0.034 | −0.181 | −0.310∗∗∗ | −0.511∗∗∗ | — | ||||||||||||
| (10) Number of spinal stenosis | 0.135 | 0.038 | −0.118 | −0.195∗ | −0.162 | 0.166 | 0.177 | 0.253∗∗ | −0.105 | — | |||||||||||
| (11) Grade of spinal stenosis according to Schizas | −0.009 | −0.064 | 0.015 | −0.087 | −0.122 | 0.009 | 0.140 | 0.248∗∗ | −0.212∗ | 0.366∗∗∗ | — | ||||||||||
| (12) Number of conservative treatment | −0.105 | 0.068 | −0.051 | −0.001 | 0.021 | 0.137 | 0.178 | 0.065 | −0.104 | 0.157 | 0.147 | — | |||||||||
| (13) NRS for LBP | 0.114 | −0.011 | 0.029 | 0.003 | 0.001 | 0.218∗ | 0.191∗ | 0.044 | −0.124 | 0.021 | 0.008 | 0.260∗∗ | — | ||||||||
| (14) NRS for leg pain | 0.068 | −0.108 | 0.084 | −0.056 | −0.17 | −0.021 | −0.013 | 0.052 | −0.039 | 0.145 | 0.053 | 0.242∗∗∗ | 0.464∗∗∗ | — | |||||||
| (15) NRS for leg numbness | 0.045 | −0.187∗ | 0.193 | 0.148 | 0.029 | 0.014 | 0.0007 | 0.091 | −0.081 | 0.041 | 0.071 | 0.183 | 0.387∗∗∗ | 0.662∗∗∗ | — | ||||||
| (16) painDETECT | −0.078 | −0.075 | 0.117 | 0.037 | −0.035 | 0.133 | 0.007 | 0.068 | 0.032 | 0.126 | 0.006 | 0.229∗∗ | 0.341∗∗∗ | 0.428∗∗∗ | 0.429∗∗∗ | — | |||||
| (17) CSI | 0.086 | 0.042 | −0.071 | −0.081 | −0.04 | 0.186∗ | 0.057 | 0.172 | 0.042 | 0.030 | −0.167 | 0.281∗∗ | 0.444∗∗∗ | 0.327∗∗∗ | 0.293∗∗∗ | 0.550∗∗∗ | — | ||||
| (18) ZCQ | 0.099 | −0.141 | 0.079 | −0.048 | −0.161 | −0.030 | −0.099 | 0.272∗∗ | −0.085 | 0.061 | 0.128 | 0.171 | 0.379∗∗∗ | 0.534∗∗∗ | 0.463∗∗∗ | 0.469∗∗∗ | 0.349∗∗∗ | — | |||
| (19) ZCQ for symptom severity | 0.086 | −0.194∗ | 0.170 | −0.000 | −0.158 | −0.070 | −0.155 | 0.239∗∗ | −0.040 | 0.062 | 0.180 | 0.171 | 0.336∗∗∗ | 0.504∗∗∗ | 0.492∗∗∗ | 0.523∗∗∗ | 0.307∗∗∗ | 0.877∗∗∗ | — | ||
| (20) ZCQ for physical function | 0.130 | 0.007 | −0.100 | −0.141 | −0.162 | 0.051 | 0.031 | 0.224∗ | −0.059 | 0.107 | 0.050 | 0.149 | 0.319∗∗∗ | 0.420∗∗∗ | 0.268∗∗ | 0.308∗∗∗ | 0.305∗∗∗ | 0.802∗∗∗ | 0.453∗∗∗ | — | |
| (21) EQ-5D-5L | −0.126 | 0.089 | 0.028 | 0.091 | 0.122 | −0.061 | 0.024 | −0.100 | 0.065 | −0.029 | −0.084 | −0.270∗∗ | −0.451∗∗∗ | −0.519∗∗∗ | −0.344∗∗∗ | −0.426∗∗∗ | −0.461∗∗∗ | −0.641∗∗∗ | −0.472∗∗∗ | −0.640∗∗∗ | — |
BMI: body mass index; NRS: Numerical Rating Scale; CSI: Central Sensitization Inventory; ZCQ: Zurich Claudication Questionnaire; EQ-5D-5L: EuroQol-5 dimensions-5 levels. ∗p < 0.05; ∗∗p < 0.01; ∗∗∗p < 0.001.