| Effusion level (mm) | Right knee joint | Left knee joint | ||||||||
| BT | AT | p(b-a) | BT | AT | p(b-a) | |||||
|
| n | % | n | % | n | % | n | % | ||
| No effusion | 13 | 43.3 | 18 | 60.0 | <0.05 | 10 | 33.3 | 20 | 66.7 | <0.05 |
| Effusion |
|
|
|
|
|
|
|
|
|
|
| < 5 mm (1) | 6 | 20.0 | 9 | 30.0 |
| 6 | 20.0 | 8 | 26.7 |
|
| 5 - 10 mm (2) | 5 | 16.7 | 2 | 6.7 |
| 12 | 40.0 | 2 | 6.6 |
|
| >10 mm (3) | 6 | 20.0 | 1 | 3.3 |
| 2 | 6.7 | 0 | 0 |
|
| Total (1-3) | 17 | 56.7 | 12 | 40.0 | <0.05 | 20 | 66.7 | 10 | 33.3 | <0.05 |
| General total | 30 | 100 | 30 | 100 |
| 30 | 100 | 30 | 100 |
|