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Number of degenerated discs after counting
| Lumbar intervertebral disc segment | Number of degenerated discs(I) | Number of degenerated discs(II) | Number of patients | |
|---|---|---|---|---|
| L1-L2 | 10 | 1 | 2 | |
| L2-L3 | 21 | 2 | 8 | |
| L3-L4 | 32 | 3 | 12 | |
| L4-L5 | 40 | 4 | 10 | |
| L5-S1 | 31 | 5 | 8 |
(I): Number of all degenerated discs in the different lumbar disc segments for all patients
(II): Number of degenerated discs per patient in this study
