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Knee damage (in the worst knee) at final radiograph in participants with at least two radiographs
| n | Joint space width = 0 mm or knee replacement | Joint space width ≤ 1 mm | Joint space width ≤ 2 mm | Joint space width ≤ 3 mm | |
|---|---|---|---|---|---|
| n (%) * | n (%) | n (%) | n (%) | ||
| Runners’ club | 45 | 1 (2.2) | 4 (8.9) | 5 (11.1) | 11 (24.4) |
| Community controls | 53 | 5 (9.4) | 6 (11.3) | 7 (13.2) | 12 (22.6) |
| Total | 98 | 6 (6.1) | 10 (10.2) | 12 (12.2) | 23 (23.5) |
p=0.21 comparing runners’ club to community controls
