Table 7 Convergent construct validity of the LTCQ and the LTCQ-8 with independent measures (Spearman’s rho)
Measure | Mean score (SD, SE, 95% CI) | Score range | Correlation with LTCQ | Correlation with LTCQ-8 |
|---|---|---|---|---|
LTCQ | 65.10 (23.04, 0.70, 63.7–66.5) | 0–100 | – | 0.97*** |
LTCQ-8 | 65.01 (25.13, 0.74, 63.6–66.5) | 0–100 | 0.97*** | – |
EQ-5D-5L | 0.62 (0.33, 0.01, 0.60–0.63) | − 0.28–1.00 | 0.82*** | 0.80*** |
EQ-VAS | 62.40 (24.65, 0.72, 61.0–63.8) | 0–100 | 0.79*** | 0.77*** |
Lorig self-efficacy scale | 6.22 (2.71, 0.08, 6.1–6.4) | 1–10 | 0.87*** | 0.84*** |
Activities of daily living | 4.98 (4.76, 0.14, 4.7–5.3) | 0–13 | − 0.79*** | − 0.77*** |
Bayliss burden of morbidity | 16.44 (13.10, 0.38, 15.7–17.2) | 0–150 | − 0.64*** | − 0.61*** |