Table 2.
Gwet’s AC2, the percentage agreement of the EQ-5D-5L and the reworded QOLIBRI-OS; Intraclass correlation coefficient and concordance correlation coefficient of the EQ VAS, the EQ-5D-5L summary index, and the reworded QOLIBRI-OS level sum score in Italy, the Netherlands, and the UK
| Italy | Netherlands | UK | ||||
|---|---|---|---|---|---|---|
| Gwet’s AC2 (95%CI) | % Agree.a | Gwet’s AC2 (95%CI) | % Agree | Gwet’s AC2 (95%CI) | % Agree | |
| EQ-5D-5L | ||||||
| Mobility | 0.93 0.90–0.95) | 90.7 | 0.81 (0.77–0.86) | 80.8 | 0.88 (0.85–0.92) | 86.6 |
| Self-care | 0.98 (0.97–0.99) | 97.1 | 0.94 (0.92–0.96) | 92.1 | 0.94 (0.92–0.96) | 92.6 |
| Usual activities | 0.91 (0.88–0.94) | 89.4 | 0.81 (0.76–0.85) | 79.2 | 0.86 (0.82–0.89) | 83.9 |
| Pain/Discomfort | 0.65 (0.59–0.71) | 69.0 | 0.64 (0.58–0.71) | 70.8 | 0.74 (0.70–0.79) | 76.0 |
| Anxiety/Depression | 0.67 (0.61–0.72) | 69.2 | 0.76 (0.72–0.81) | 75.6 | 0.71 (0.66–0.77) | 72.8 |
| ICC (trans.b) 95% CI | CCC 95% CI | ICC (trans.) 95% CI | CCC 95% CI | ICC (trans.) 95% CI | CCC 95% CI | |
|---|---|---|---|---|---|---|
| EQ VAS | 0.62 (0.56–0.68) | 0.61 (0.54–0.67) | 0.67 (0.61–0.72) | 0.64 (0.58–0.70) | 0.66 (0.60–0.71) | 0.68 (0.63–0.73) |
| EQ-5D Summary index | 0.76 (0.72–0.80) | 0.76 (0.72–0.80) | 0.81 (0.77–0.84) | 0.81 (0.77–0.84) | 0.85 (0.82–0.87) | 0.84 (0.81–0.87) |
| Gwet’s AC2 (95%CI) | % Agree | Gwet’s AC2 (95%CI) | % Agree | Gwet’s AC2 (95%CI) | % Agree | |
|---|---|---|---|---|---|---|
| Reworded QOLIBRI-OS | ||||||
| Physical condition | 0.55 (0.49–0.62) | 56.0 | 0.62 (0.56–0.67) | 62.8 | 0.47 (0.40–0.53) | 55.4 |
| Cognition | 0.57 (0.51–0.63) | 58.4 | 0.63 (0.57–0.68) | 62.8 | 0.51 (0.44–0.57) | 56.2 |
| Emotion | 0.47 (0.41–0.54) | 50.7 | 0.55 (0.49–0.60) | 53.6 | 0.45 (0.38–0.51) | 52.7 |
| Function in daily activities | 0.47 (0.47–0.54) | 49.9 | 0.64 (0.58–0.70) | 65.4 | 0.52 (0.46–0.58) | 56.9 |
| Personal and social life | 0.45 (0.38–0.51) | 50.4 | 0.59 (0.53–0.65) | 59.7 | 0.41 (0.34–0.48) | 53.0 |
| Current situation and future prospects | 0.39 (0.32–0.46) | 46.7 | 0.54 (0.48–0.60) | 58.2 | 0.44 (0.37–0.50) | 53.0 |
| ICC (trans.) 95% CI | CCC 95% CI | ICC (trans.) 95% CI | CCC 95% CI | ICC (trans.) 95% CI | CCC 95% CI | |
|---|---|---|---|---|---|---|
| Reworded QOLIBRI-OS level sum score | 0.69 (0.64–0.74) | 0.69 (0.64–0.74) | 0.77 (0.73–0.81) | 0.78 (0.74–0.81) | 0.76 (0.72–0.80) | 0.77 (0.73–0.81) |
aPercentage (%) agreement
bTransformed using Tukey’s “Ladder of Powers”