Table 3.
The comparisons of impairment and participation restriction variables among phenotypes
| Cluster 1 (3) (N = 79) |
Cluster 2 (4) (N = 67) |
Cluster 3 (2) (N = 76) |
Cluster 4 (1) (N = 28) |
p-valuea | |
|---|---|---|---|---|---|
| Pain scale: Mean ± SD | 3.88 ± 2.68 | 4.06 ± 2.44 | 4.82 ± 2.61 | 5.18 ± 3.20 | 0.012* |
| FPROM (degree): Mean ± SD | 131.22 ± 9.92 | 127.69 ± 12.62 | 123.42 ± 16.93 | 118.96 ± 24.58 | 0.001* |
| EPROM (degree): Mean ± SD | 3.19 ± 4.92 | 5.48 ± 5.73 | 5.25 ± 5.95 | 5.64 ± 6.18 | 0.032* |
| Knee flexor muscle power: Median (Q1, Q3) | 4 (4,5) | 4 (4,5) | 4 (3.25,5) | 4 (4,5) | 0.003 |
| Knee extensor muscle power: Median (Q1, Q3) | 5 (4,5) | 5 (4,5) | 4 (4,5) | 5 (4,5) | < 0.001 |
| Acquisition of good and service: Median (Q1, Q3) | 1 (0,2) | 2 (1,2) | 2 (2,3.75) | 3 (2,4) | < 0.001 |
| Community life: Median (Q1, Q3) | 1 (0,2) | 2 (1,2) | 2 (2,3) | 3 (1,4) | < 0.001 |
ap-values of the Kruskal-Wallis test
Abbreviation: FPROM Flexion passive range of motion, EPROM Extension passive range of motion. *different among clusters at p < .05