Table 3.
Comparison of pre-operative and post-operative patient reported outcome measure scores: Total hip replacement
|
|
Pre-operative (n = 68), median (IQR)
|
Post-operative (n = 68), median (IQR)
|
P value1
|
Z value
|
| HOOS pain | 33 (25-40) | 92 (77-98) | < 0.001a | -4.868 |
| HOOS symptoms | 38 (30-49) | 89 (82-93) | < 0.001a | -4.909 |
| HOOS ADL | 37 (26-43) | 88 (78-97) | < 0.001a | -4.841 |
| HOOS Sport/Rec | 19 (6-31) | 70 (50-86) | < 0.001a | -4.788 |
| HOOS QoL | 19 (6-31) | 75 (56-93) | < 0.001a | -4.663 |
| Overall HOOS | 28.9 (18.2-37.9) | 80.7 (64.5-89.4) | < 0.001a | -4.681 |
| WOMAC pain | 40 (30-49) | 95 (85-100) | < 0.001a | -4.932 |
| WOMAC stiffness | 25 (25-50) | 88 (75-100) | < 0.001a | -4.760 |
| WOMAC function | 36.8 (28.3-44.1) | 91.9 (75.7-98.5) | < 0.001a | -4.864 |
| Oxford hip score | 14 (10-20) | 42 (35-47) | < 0.001a | -4.912 |
| EQ-5D index | 0.335 (0.169-0.533) | 0.857 (0.643-1) | < 0.001a | -4.918 |
| EQ-5D VAS | 65 (50-80) | 90 (79-95) | < 0.001a | -4.357 |
| SF-12 PCS | 24.8 (21.7-29.3) | 50.6 (36.5-55.0) | < 0.001a | -4.623 |
| SF-12 MCS | 49.6 (39.9-58.3) | 57.8 (55.4-59.8) | 0.076 | -1.776 |
1
Wilcoxon Signed Rank test.
a
Statistically significant P < 0.05.
IQR: Interquartile range; KOOS: Knee Osteoarthritis Outcome Score; ADL: Activities of daily living; Sport/Rec: Sports and recreation; QoL: Quality of life; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; EQ-5D: EuroQol-5D index; VAS: Visual Analogue Scale; SF-12: Short form 12 item survey; PCS: Physical component summary; MCS: Mental component summary.