Table 2.
Descriptive characteristics of outcome scores reported at 3 and 12 months follow-up
| PROMs | 3 months data | 12 months data | |||||
|---|---|---|---|---|---|---|---|
| Statistics | Entire cohort |
PASS group | Non-PASS group | Entire cohort |
PASS group | Non-PASS group | |
| FJS | Count (%) | 2035 (100) | 1912 (94) | 123 (6) | 1939 (100) | 1772 (91) | 167 (9) |
| skewness | −0.2 | −0.2 | 1.9 | −0.6 | −0.7 | 1.5 | |
| median | 60.4 | 62.5 | 11.4 | 72.9 | 77.1 | 14.6 | |
| IQR | 33.3–81.8 | 35.4–83.3 | 2.2–25.0 | 39.6–93.8 | 49.5–95.8 | 2.2–27.1 | |
| Mean (SD) | 57.1 (29.1) | 59.7 (27.7) | 16.9 (18.7) | 65.4 (31.1) | 69.7 (28.2) | 19.2 (20.3) | |
| OHS | Count (%) | 2035 (100) | 1912 (94) | 123 (6) | 1939 (100) | 1772 (91) | 167 (9) |
| skewness | −1.2 | −1.3 | −0.2 | −1.6 | −1.7 | −0.2 | |
| median | 39 | 40 | 22 | 44 | 45 | 24 | |
| IQR | 32–44 | 34–45 | 16–29 | 36–47 | 39–48 | 16–31 | |
| Mean (SD) | 37.1 (9.4) | 38.1 (8.6) | 22.1 (8.6) | 40.2 (9.4) | 41.7 (7.7) | 23.6 (10.1) | |
| EQ-5D-5 L | Count (%) | 1937 (100) | 1241 (64) | 696 (34) | 1832 (100) | 1143 (62) | 689 (38) |
| skewness | −2.1 | −2.6 | −1.4 | −2.2 | −3.1 | −1.3 | |
| median | 0.866 | 0.922 | 0.751 | 0.922 | 1.0 | 0.753 | |
| IQR | 0.751–0.95 | 0.829–1.0 | 0.619–0.837 | 0.777–1.0 | 0.887–1.0 | 0.593–0.887 | |
| Mean (SD) | 0.817 (0.2) | 0.888 (0.1) | 0.692 (0.2) | 0.841 (0.2) | 0.929 (0.1) | 0.695 (0.3) | |
FJS, forgotten joint score; OHS, oxford hip score; EQ-5D-5L, EuroQol five dimension five level; IQR, interquartile range; SD, standard deviation; PASS group, patients who reported acceptable symptom state based on hip-specific anchor (patient satisfaction) for FJS and OHS or acceptable general health state based on general health anchor (EQ-VAS) for the EQ-5D-5L