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Distribution of HIZ in single or multiple disks on lumbar MR images (n = 200 patients)
| Lumbar disk with HIZ | Patients | ||
|---|---|---|---|
| n | Location | n | % |
| 1 | L1/2 | 5 | |
| L2/3 | 4 | ||
| L3/4 | 26 | ||
| L4/5 | 79 | ||
| L5/S1 | 53 | ||
| Total | 167 | 83.5 | |
| 2 | L2/3 + L4/5 | 1 | |
| L2/3 + L5/S1 | 1 | ||
| L3/4 + L4/5 | 7 | ||
| L3/4 + L5/S1 | 5 | ||
| L4/5 + L5/S1 | 15 | ||
| Total | 29 | 14.5 | |
| 3 | L1/2 + L2/3 + L4/5 | 1 | |
| L2/3 + L3/4 + L4/5 | 1 | ||
| L2/3 + L4/5 + L5/S1 | 1 | ||
| Total | 3 | 1.5 | |
| 4 | L1/2 + L2/3 + L3/4 + L4/5 | 1 | |
| Total | 1 | 0.5 | |
| Total | 200 | 100.0 | |
