Construct validity
| Measure | Mean score (SD, SE, 95% CI) | Score range | Interpretation of higher score | Correlation with LTCQ score (Spearman’s rho) |
| LTCQ | 65.1 (23.0, 0.70, 63.7 to 66.5) | 0–100 | Living better with long-term conditions | – |
| EQ-5D-5L | 0.62 (0.33, 0.01, 0.60 to 0.63) | −0.28–1 | Better health-related quality of life | 0.82*** |
| EQ-VAS | 62.4 (24.6, 0.72, 61.0 to 63.8) | 0–100 | Better health-related quality of life | 0.79*** |
| Self-efficacy scale | 6.2 (2.7, 0.08, 6.1 to 6.4) | 1–10 | Greater confidence for managing chronic disease | 0.87*** |
| Activities of Daily Living | 5.0 (4.8, 0.14, 4.7 to 5.3) | 0–13 | More problems with activities of daily living | −0.79*** |
| Bayliss burden of morbidity | 16.4 (13.1, 0.38, 15.7 to 17.2) | 0–150 | More limits on daily activities from LTCs | −0.64*** |
***p<0.001 (two-tailed)