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Comparison of imaging findings of patients with low back pain between the G and P groups.
| Low Back Pain | Group G (n = 9) | Group P (n = 25) | p-Value |
|---|---|---|---|
| disc height decreases ≥ 25% | 5 | 16 | 0.704 † |
| HIC of protruded NP on MRI | 5 | 13 | 1.000 † |
| the spinal canal occupying ratio ≥ 40% | 4 | 12 | 1.000 † |
| Pfirrmann classification | 0.381 † | ||
| Grade II | 2 | 10 | |
| Grade III | 7 | 13 | |
| Grade IV | 0 | 1 |
†: χ2 test. HIC = high-intensity change, NP = nucleus pulposus, MRI = magnetic resonance imaging.
