Health-related quality of life across different stages of care
| Measure (range of possible values) | Score, mean ± SD; stage of care | ||||
|---|---|---|---|---|---|
| Referral n = 58 | Consultation n = 232 | Presurgery n = 151 | 12 mo after surgery n = 63 | Long-term* n = 14 | |
| EQ-5D index (0–1) | 0.78 ± 0.15 | 0.78 ± 0.11 | 0.79 ± 0.10 | 0.84 ± 0.11 | 0.85 ± 0.08 |
| EQ-5D VAS (0–100) | 65.9 ± 19.1 | 61.8 ± 18.9 | 64.2 ± 18.7 | 74.49 ± 19.14 | 79.2 ± 11.0 |
| SF-12 PCS (0–100) | 30.5 ± 8.2 | 30.5 ± 8.0 | 31.2 ± 8.1 | 42.0 ± 10.5 | 41.7 ± 8.9 |
| SF-12 MCS (0–100) | 52.8 ± 10.9 | 49.9 ± 12.2 | 52.4 ± 10.3 | 51.4 ± 11.4 | 51.6 ± 8.5 |
| WOMAC pain (0–20) | 9.2 ± 3.6 | 9.7 ± 3.6 | 10.5 ± 3.8 | 15.3 ± 4.7 | 14.8 ± 4.8 |
| WOMAC stiffness (0–8) | 3.9 ± 1.9 | 3.5 ± 1.7 | 3.8 ± 1.7 | 5.5 ± 3.1 | 5.2 ± 2.4 |
| WOMAC function (0–68) | 33.1 ± 12.5 | 33.1 ± 12.6 | 32.4 ± 11.8 | 52.3 ± 14.4 | 50.7 ± 15.4 |
| Total WOMAC (0–96) | 49.8 ± 16.5 | 49.7 ± 16.8 | 49.1± 15.4 | 22.8 ± 20.5 | 25.2 ± 22.2 |
Note: Higher scores indicate better outcomes. EQ-5D = EuroQoL 5-Dimension 5-Level too; IQR = interquartile range; MCS = mental component score; PCS = physical component score; SD = standard deviation; SF-12 = 12-Item Short Form Health Survey (version2); VAS = visual analogue scale; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.
↵* Patients in this group had not undergone surgery since their initial consultation.