Structural abnormality compared by age for 91 data base patients with low back pain and type 1 pedicle marrow changes
| Age <30 yr | Age 30–50 yr | Age ≥50 yr | |
|---|---|---|---|
| No. with type 1 changes | 27 | 17 | 47 |
| Sex (M/F) | 24/3 | 3/14 | 16/31 |
| Diagnosis | |||
| Fracture, pars | 17 | 1 | 5 |
| Fracture, pedicles | 5 | 1 | 1 |
| Degenerative facet disease | 0 | 15 | 41 |
| No definitive diagnosis | 5 |