From: Radiographic indices for lumbar developmental spinal stenosis
 | Cutoff | Sensitivity | Specificity | Area under curve | p value | 95% CI |
---|---|---|---|---|---|---|
SBW:PW | ||||||
L1 | 2.0 | 0.76 | 0.50 | 0.67 | 0.18 | 0.53–0.81 |
L2 | 2.0 | 0.78 | 0.67 | 0.73 | 0.06 | 0.58–0.89 |
L3 | 2.2 | 0.90 | 0.83 | 0.92 | 0.001 | 0.83–1.00 |
L4 | 2.2 | 0.92 | 0.83 | 0.94 | <0.001 | 0.88–1.00 |
L5 | 2.5 | 0.90 | 0.99 | 0.96 | <0.001 | 0.91–1.00 |
S1 | 2.8 | 0.81 | 0.99 | 0.91 | 0.001 | 0.84–0.99 |
SBW:PPM | ||||||
L1 | 1.2 | 0.64 | 0.50 | 0.57 | 0.56 | 0.42–0.73 |
L2 | 1.2 | 0.68 | 0.67 | 0.58 | 0.54 | 0.36–0.79 |
L3 | 1.2 | 0.76 | 0.67 | 0.66 | 0.20 | 0.45–0.87 |
L4 | 1.3 | 0.70 | 0.83 | 0.77 | 0.03 | 0.64–0.91 |
L5 | 1.4 | 0.71 | 0.83 | 0.81 | 0.01 | 0.68–0.94 |
S1 | 1.4 | 0.56 | 0.67 | 0.58 | 0.53 | 0.45–0.71 |
ABW:IPD | ||||||
L1 | 1.6 | 0.81 | 0.50 | 0.70 | 0.11 | 0.49–0.90 |
L2 | 1.6 | 0.95 | 0.67 | 0.71 | 0.09 | 0.44–0.99 |
L3 | 1.6 | 0.90 | 0.67 | 0.77 | 0.03 | 0.60–0.95 |
L4 | 1.7 | 0.78 | 0.83 | 0.83 | 0.01 | 0.72–0.94 |
L5 | 1.7 | 0.61 | 0.83 | 0.72 | 0.09 | 0.58–0.85 |
S1 | 1.7 | 0.68 | 0.99 | 0.83 | 0.01 | 0.72–0.94 |