Descriptive statistics and test–retest reliability of HAGOS
| Patients with hip and/or groin pain (n = 44) | Test, mean (SD) | Retest, mean (SD) | Difference test–retest, mean (SD) | SEM (95% CI) | SDC(ind) (95% CI) | SDC(group) (95% CI) | ICC (95% CI) | Cronbach's α |
|---|---|---|---|---|---|---|---|---|
| Pain | 62.3 (20.6) | 64.8 (20.8) | 2.6 (9.6) | 6.8 (5.0–9.2) | 18.8 (13.8–25.4) | 2.8 (2.1–3.8) | 0.89 (0.80–0.94) | 0.91 |
| Symptoms | 56.5 (16.7) | 58.6 (17.9) | 2.1 (9.0) | 6.4 (5.1–8.4) | 17.7 (14.1–23.2) | 2.7 (2.1–3.5) | 0.86 (0.76–0.92) | 0.79 |
| ADL | 68.6 (23.5) | 68.8 (24.7) | 0.1 (10.1) | 7.2 (5.4–9.3) | 20.0 (14.9–25.7) | 3.0 (2.2–3.9) | 0.91 (0.85–0.95) | 0.87 |
| Sport/Rec | 45.0 (26.0) | 44.9 (27.5) | −0.1 (11.6) | 8.0 (6.0–10.7) | 22.2 (16.6–29.6) | 3.3 (2.5–4.5) | 0.91 (0.84–0.95) | 0.93 |
| PA* | 25.9 (30.7) | 26.2 (27.7) | 0.3 (17.8) | 12.2 (9.2–16.2) | 33.8 (25.4–44.8) | 5.2 (3.9–6.8) | 0.82 (0.69–0.90) | 0.87 |
| QOL | 33.4 (15.8) | 37.3 (15.9) | 3.9 (8.4) | 6.4 (4.8–9.0) | 17.7 (13.3–24.9) | 2.7 (2.0–3.8) | 0.84 (0.68–0.91) | 0.81 |
A normalised score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated for each subscale.
↵* n = 43.
ADL, Activities of Daily Living; ICC, intraclass correlation coefficient (3.1, agreement); PA, Participation in Physical Activity; QOL, Quality of Life; SDC(ind), smallest detectable change at the individual level; SDC(group), smallest detectable change at group level.