Continuous secondary outcome results
| Time point | Usual | Experimental | Mean difference | P value | |
| n, Mean (SD) | n, Mean (SD) | Unadjusted | Adjusted (95% CI) | ||
| Lower Extremity Functional Scale | |||||
| Baseline | n=82, 23.72 (13.11) | n=130, 24.50 (14.07) | 0.78 | – | – |
| 6 months | n=45, 45.40 (19.76) | n=80, 51.44 (17.70) | 6.04 | 2.60 (–3.29 to 8.50) | 0.39 |
| 12 months | n=51, 47.86 (18.97) | n=80, 50.67 (21.40) | 2.81 | 1.26 (–4.61 to 7.13) | 0.67 |
| Oxford Hip Score | |||||
| Baseline | n=40, 16.05 (6.36) | n=67, 16.78 (7.99) | 0.73 | – | – |
| 6 months | n=28, 34.84 (11.73) | n=50, 39.68 (8.93) | 4.84 | 3.86 (–0.92 to 8.64) | 0.11 |
| 12 months | n=27, 36.90 (12.48) | n=48, 39.42 (10.46) | 2.52 | 2.37 (–2.53 to 7.27) | 0.34 |
| Oxford Knee Score | |||||
| Baseline | n=45, 18.67 (8.51) | n=72, 17.46 (6.99) | −1.21 | – | – |
| 6 months | n=33, 35.20 (7.62) | n=51, 33.45 (9.38) | −1.75 | −1.74 (–5.03 to 1.54) | 0.30 |
| 12 months | n=35, 34.90 (8.46) | n=55, 33.54 (9.84) | −1.36 | −1.43 (–4.72 to 1.86) | 0.39 |
| Numerical Rating Scale for Pain | |||||
| Baseline | n=85, 6.87 (1.94) | n=139, 7.23 (1.79) | 0.36 | – | – |
| 6 months | n=61, 3.34 (2.59) | n=101, 3.54 (2.74) | 0.20 | 0.19 (–0.64 to 1.02) | 0.66 |
| 12 months | n=61, 4.08 (2.87) | n=102, 3.33 (2.85) | −0.75 | −0.75 (–1.59 to 0.09) | 0.08 |
| Generalised Self-Efficacy Scale | |||||
| Baseline | n=84, 31.31 (5.49) | n=138, 31.67 (5.39) | 0.36 | – | – |
| 6 months | n=58, 31.88 (5.18) | n=98, 33.03 (5.30) | 1.15 | 1.15 (–0.30 to 2.61) | 0.12 |
| 12 months | n=61, 32.16 (5.55) | n=101, 32.20 (6.72) | 0.03 | 0.33 (–1.13 to 1.78) | 0.66 |
| Tampa Scale for Kinesiophobia | |||||
| Baseline | n=85, 40.04 (7.44) | n=136, 39.77 (7.75) | −0.26 | – | – |
| 6 months | n=56, 35.77 (7.74) | n=91, 34.77 (7.29) | −1.00 | −0.39 (–2.40 to 1.61) | 0.70 |
| 12 months | n=57, 36.56 (6.91) | n=90, 35.06 (8.27) | −1.51 | −0.77 (–2.79 to 1.24) | 0.45 |
| Hospital Anxiety and Depression Scale (overall) | |||||
| Baseline | n=85, 11.85 (6.16) | n=138, 12.50 (7.07) | 0.65 | – | – |
| 6 months | n=59, 8.97 (6.52) | n=97, 8.81 (6.36) | −0.15 | −1.18 (–2.73 to 0.37) | 0.14 |
| 12 months | n=62, 9.02 (6.61) | n=98, 9.70 (6.99) | 0.69 | 0.52 (–1.03 to 2.06) | 0.51 |
| Hospital Anxiety and Depression Scale (anxiety) | |||||
| Baseline | n=85, 5.89 (3.78) | n=138, 6.63 (4.07) | 0.74 | – | – |
| 6 months | n=60, 4.95 (4.01) | n=98, 4.95 (3.57) | 0.00 | −0.71 (–1.67 to 0.25) | 0.15 |
| 12 months | n=62, 4.76 (3.73) | n=99, 5.46 (3.84) | 0.71 | 0.36 (–0.60 to 1.31) | 0.46 |
| Hospital Anxiety and Depression Scale (depression) | |||||
| Baseline | n=85, 5.95 (3.16) | n=139, 5.89 (3.81) | −0.06 | – | – |
| 6 months | n=61, 4.03 (3.27) | n=99, 3.90 (3.51) | −0.13 | −0.25 (–1.13 to 0.63) | 0.58 |
| 12 months | n=62, 4.26 (3.47) | n=101, 4.30 (4.02) | 0.04 | 0.24 (–0.65 to 1.12) | 0.60 |
| EQ-5D-5L Index | |||||
| Baseline | n=85, 0.40 (0.22) | n=139, 0.39 (0.27) | −0.01 | – | – |
| 6 months | n=68, 0.66 (0.23) | n=117, 0.69 (0.25) | 0.03 | 0.03 (–0.03 to 0.10) | 0.31 |
| 12 months | n=70, 0.67 (0.24) | n=113, 0.67 (0.29) | 0.00 | 0.00 (–0.06 to 0.07) | 0.93 |
| EQ-VAS | |||||
| Baseline | n=85, 61.33 (20.01) | n=139, 60.58 (23.56) | −0.75 | – | – |
| 6 months | n=68, 70.93 (18.67) | n=117, 73.86 (20.02) | 2.94 | 2.84 (–2.31 to 7.99) | 0.28 |
| 12 months | n=69, 72.51 (17.90) | n=110, 72.94 (19.98) | 0.43 | 1.47 (–3.73 to 6.68) | 0.58 |
EQ-5D-5L, EuroQol 5-level; EQ-VAS, EuroQol Visual Analogue Scale.