Table 4.
Clinical findings according to worst affected knee among floor layers (n = 134) compared to graphic designers (n = 120)
| Floor layers | Graphic designers | |||||
| Clinical knee findings | n | % | n | % | ORadj.† | 95% CI |
| Prepatellar hyperkeratosis | 62 | 46.3 | 8 | 6.7 | 14.0 | 6.1–32.3 |
| Positive patellar tap test | 8 | 6.0 | 9 | 7.5 | 0.8 | 0.3–2.4 |
| Patellofemoral crepitation | 87 | 64.9 | 66 | 55.0 | 1.9 | 1.1–3.4 |
| Tenderness on palpating the | ||||||
| - tibiofemoral joint line | 42 | 31.3 | 11 | 9.2 | 5.4 | 2.4–12.0 |
| - patella tendon proximally | 7 | 5.2 | 1 | 0.8 | 9.4 | 1.1–82.3 |
| - patella retinaculum | 7 | 3.7 | 8 | 3.3 | 0.7 | 0.2–2.2 |
| - pes anserinus | 3 | 2.2 | 2 | 1.7 | 1.6 | 0.2–11.9 |
| - tibial tuberosity | 2 | 1.5 | 1 | 0.8 | 2.1 | 0.2–24.4 |
| Positive McMurray test | 32 | 23.9 | 14 | 11.7 | 2.4 | 1.1–5.0 |
| Diminished flexion | 4 | 3.0 | 1 | 0.8 | 4.1 | 0.4–41.2 |
| Positive patellar tracking test | 15 | 11.2 | 2 | 1.7 | 8.3 | 1.8–38.9 |
Adjusted odds ratio (OR) with 95% confidence interval (CI).
† Adjusted for body mass index, age and knee straining sports