Change in PROM score associated with 1 SD difference in PREM score (overall and for each dimension)
| PREM—difference of 1 SD in: | PROM (mean change and 95% CI) | ||||
|---|---|---|---|---|---|
| Hip replacement | Knee replacement | Groin repair | |||
| OHS | EQ-5D | OKS | EQ-5D | EQ-5D | |
| Overall mean score | 2.23 (1.91 to 2.55) | 0.038 (0.027 to 0.050) | 2.08 (1.80 to 2.37) | 0.043 (0.033 to 0.053) | 0.028 (0.017 to 0.038) |
| Consistency/co-ordination | 1.19 (0.86 to 1.52) | 0.015 (0.004 to 0.027)** | 1.38 (1.09 to 1.67) | 0.019 (0.009 to 0.030) | 0.018 (0.007 to 0.028) |
| Respect/dignity | 0.60 (0.28 to 0.93) | 0.014 (0.003 to 0.026)* | 0.99 (0.69 to 1.28) | 0.011 (0.001 to 0.021)* | 0.016 (0.006 to 0.026) |
| Pain control | 1.25 (0.92 to 1.57) | 0.017 (0.005 to 0.028)** | 1.07 (0.77 to 1.37) | 0.021 (0.011 to 0.032) | 0.016 (0.005 to 0.028)** |
| Explanation/involvement | 1.73 (1.41 to 2.04) | 0.026 (0.015 to 0.037) | 1.80 (1.52 to 2.08) | 0.039 (0.029 to 0.049) | 0.021 (0.011 to 0.031) |
| Doctors: trust/communication | 2.03 (1.70 to 2.35) | 0.038 (0.026 to 0.050) | 1.83 (1.55 to 2.11) | 0.042 (0.032 to 0.052) | 0.021 (0.011 to 0.032) |
| Nurses: trust/communication | 1.88 (1.56 to 2.20) | 0.029 (0.018 to 0.040) | 1.71 (1.42 to 2.00) | 0.034 (0.024 to 0.044) | 0.024 (0.014 to 0.035) |
| Cleanliness/hygiene | 1.25 (0.93 to 1.57) | 0.027 (0.016 to 0.038) | 1.12 (0.83 to 1.41) | 0.023 (0.013 to 0.033) | 0.023 (0.013 to 0.032) |
| Discharge information | 1.47 (1.15 to 1.79) | 0.028 (0.017 to 0.039) | 1.14 (0.85 to 1.43) | 0.019 (0.009 to 0.030) | 0.017 (0.006 to 0.027)** |
*p<0.05 **p<0.01 all others p<0.001.
OHS, Oxford Hip Score; OKS, Oxford Knee Score; PREM, patient reported experience measure; PROM, patient reported outcome measure.