Table 6 Reliability (7 studies)
From: Assessing the psychometric performance of EQ-5D-5L in dementia: a systematic review
Study references (author, year) | Index or dimensions or both assessed | Analysis | Reliability observed yes/no |
|---|---|---|---|
Griffiths, 2020 [27] | Both | Inter-rater reliability by self, proxy (relatives or friends or care staff); weighted Cohen’s Kappa statistic | No |
Handels, 2018 [23] | Index | Inter-rater reliability by self and proxy (informal caregiver); paired t-tests | No |
Martin, 2019 [28] | Index | Inter-rater reliability by self, proxy (formal and informal carers) assessed by spearman rank-order correlation and Bland Altman plots | Overall No |
Sopina, 2019 [34] | Both | Inter-rater reliability; self and proxy (nurse). Intra-class correlation coefficients for residential facilities and two-way mixed effects model regression | No |
Sopina, 2017 [35] | Index | Inter-rater reliability; self and proxy (main caregiver); Probability of being cost-effective—sensitivity analysis | No |
Umegaki, 2020 [30] | Both | Correlation analysis between self and proxy (main caregiver) | No |
Usman, 2019 [40] | Both | Inter-rater reliability staff proxy and self-complete at three time points. Weighted kappa statistics and intra-class correlation coefficients (ICCs) adjusted for clustering at the care home level were used to measure agreement between resident and staff proxies for each time point | No |