Table 1.
Comparison of the demographic values in subjects grouped by severity of knee osteoarthritis identified by radiography
| Total | KLG 2 | KLG 3 | KLG 4 | |
|---|---|---|---|---|
| n = 127 | n = 81 | n = 33 | n = 13 | |
| Age | 68.3 ± 9.8 | 65.8 ± 9.8 | 71.5 ± 7.4a | 75.4 ± 9.3a |
| Body mass index | 23.2 ± 3.0 | 22.6 ± 2.7 | 23.6 ± 2.7 | 26.3 ± 3.7ab |
| Kellgren-Lawrence grade | 4.7 ± 1.1 | 4.0 ± 0 | 5.5 ± 0.5a | 7.3 ± 0.5ab |
| Effusion area | 99.2 ± 89.7 | 73.9 ± 65.8 | 139.3 ± 94.8a | 155.3 ± 139.8a |
| KOOS pain | 83.6 ± 20.3 | 91.3 ± 12.2 | 73.1 ± 24.3a | 62.8 ± 23.7a |
| KOOS symptom | 84.5 ± 19.0 | 91.3 ± 13.3 | 75.9 ± 20.4a | 64.3 ± 23.5a |
| KOOS ADL | 88.8 ± 16.6 | 94.7 ± 10.0 | 80.4 ± 19.9a | 74.0 ± 22.2a |
| KOOS sport | 72.8 ± 30.1 | 85.1 ± 21.1 | 55.8 ± 29.3a | 40.0 ± 36.1a |
| KOOS QOL | 70.3 ± 27.1 | 82.4 ± 17.1 | 49.6 ± 28.3a | 47.1 ± 29.6a |
Statistical analysis by analysis of variance (Tukey post-hoc test); a P ≤ 0.01 compared to Kellgren-Lawrence grade (KLG) 2; b P ≤ 0.01 compared to KLG 3. The effusion area and KLG values are the sum of these values for both knees. KOOS knee injury and osteoarthritis outcome scale, ADL activities of daily living, QOL quality of life