Table 2.
Summary statistics for HOOS, 30-s chair stand and isometric hip muscle strength
| Outcomes | Baseline | Follow-up | Change |
|---|---|---|---|
| HOOS | |||
| median (1st; 3rd quartile) | |||
| - ADL | 75 (63; 85)* | 91 (85; 95)* | 13 (6; 21)† |
| - Symptoms | 70 (60; 80)* | 85 (75; 90) | 10 (5; 20)* |
| - Pain | 75 (65; 88)* | 93 (85; 98) | 12 (3; 23)* |
| - QOL | 56 (44; 63)* | 75 (63; 94)* | 19 (6.5; 31)† |
| 30-s chair stand test | |||
| median (1st;3rd quartile) | 12 (10; 15) | 16 (13; 20) | 4 (2; 7) |
| Isometric hip muscle strength (Nm/kg) | |||
| mean (95% CI) | |||
| - Abduction | 0.76 | 1.02 | 0.25 |
| (0.71; 0.82)† | (0.96; 1.08)† | (0.21; 0.29)‡ | |
| - Flexion | 0.88 | 1.1 | 0.22 |
| (0.82; 0.94)* | (1.03; 1.16)† | (0.18; 0.26)† |
The table presents values at baseline and follow-up as well as change (baseline to follow-up, 3–10 weeks after surgery) in Hip disability and Osteoarthritis Outcome Score (HOOS), 30-s chair stand and isometric hip muscle strength. N=94 unless otherwise stated. * n=93; † n=92; ‡ n=91