Degenerative disc disease of the lumbar spine as measured by Pfirrmann score
| Disc level | Pfirrmann score median (IQR) | No of rowers with Pfirrmann score of 3 or more (in at least one disc where combined) (%) | No of rowers with Pfirrmann score of 4 or more (in at least one disc where combined) (%) |
| L1/2 | 2 (1–2) | 0 | 0 |
| L2/3 | 1.5 (1–2) | 3 (15) | 1 (5) |
| L3/4 | 1.5 (1–2.5) | 5 (25) | 3 (15) |
| L4/5 | 2 (1–3) | 7 (35) | 3 (15) |
| L5/S1 | 3.5 (3–4) | 16 (80) | 10 (50) |
| Combined L3/4, L4/5, L5/S1 | 8 (6–8) | 17 (85) | 13 (65) |
| Combined all discs | 10 (9–11.25) | 17 (85) | 13 (65) |