OBJECTIVES: To assess the measurement equivalence of the original paper version of an adapted tablet version of the EuroQol five-dimensional questionnaire (EQ-5D). METHODS: A randomly selected sample of 509 individuals aged 18 to 64 years from the general population responded to the EQ-5D at two time points separated by a minimum interval of 24 hours and were allocated to one of the following groups: test-retest group (tablet-tablet) or crossover group (paper-tablet and tablet-paper). Agreement between methods was determined using the intraclass correlation coefficient (ICC) and the κ coefficient. RESULTS: In the crossover group, the following ICC values were obtained: 0.76 (confidence interval [CI] 0.58-0.89) for EQ-5D scores and 0.77 (CI 0.68-0.84) for visual analogue scale in subjects responding first to the tablet version; 0.83 (CI 0.75-0.89) for EQ-5D scores and 0.75 (CI 0.67-0.85) for visual analogue scale in subjects responding first to the paper version. In the test-retest group, the ICC was 0.85 (CI 0.73-0.91) for EQ-5D scores and 0.79 (CI 0.66-0.87) for visual analogue scale. The κ values were higher than 0.69 in this group. The internal consistencies of the paper and tablet methods were similar. CONCLUSIONS: The paper and tablet versions of the EQ-5D are equivalent. Test-retest and crossover agreement was high and the acceptability of the methods was similar among individuals.
OBJECTIVES: To assess the measurement equivalence of the original paper version of an adapted tablet version of the EuroQol five-dimensional questionnaire (EQ-5D). METHODS: A randomly selected sample of 509 individuals aged 18 to 64 years from the general population responded to the EQ-5D at two time points separated by a minimum interval of 24 hours and were allocated to one of the following groups: test-retest group (tablet-tablet) or crossover group (paper-tablet and tablet-paper). Agreement between methods was determined using the intraclass correlation coefficient (ICC) and the κ coefficient. RESULTS: In the crossover group, the following ICC values were obtained: 0.76 (confidence interval [CI] 0.58-0.89) for EQ-5D scores and 0.77 (CI 0.68-0.84) for visual analogue scale in subjects responding first to the tablet version; 0.83 (CI 0.75-0.89) for EQ-5D scores and 0.75 (CI 0.67-0.85) for visual analogue scale in subjects responding first to the paper version. In the test-retest group, the ICC was 0.85 (CI 0.73-0.91) for EQ-5D scores and 0.79 (CI 0.66-0.87) for visual analogue scale. The κ values were higher than 0.69 in this group. The internal consistencies of the paper and tablet methods were similar. CONCLUSIONS: The paper and tablet versions of the EQ-5D are equivalent. Test-retest and crossover agreement was high and the acceptability of the methods was similar among individuals.
Authors: Melina N Haik; Francisco Alburquerque-Sendín; Ricardo A S Fernandes; Danilo H Kamonseki; Lucas A Almeida; Richard E Liebano; Paula R Camargo Journal: Diagnostics (Basel) Date: 2020-11-10
Authors: Cindy Lo Kuen Lam; Emily Tsui Yee Tse; Carlos King Ho Wong; Joyce Sau Mei Lam; Sikky Shiqi Chen; Laura Elizabeth Bedford; Jason Pui Yin Cheung; Calvin Kalun Or; Paul Kind Journal: Health Qual Life Outcomes Date: 2021-12-18 Impact factor: 3.186
Authors: Amy Pui Pui Ng; Kiki Sze Nga Liu; Will Ho Gi Cheng; Carlos King Ho Wong; John King Yiu Cheng; Joyce Sau Mei Lam; Calvin Kalun Or; Emily Tsui Yee Tse; Cindy Lo Kuen Lam Journal: Health Qual Life Outcomes Date: 2022-09-20 Impact factor: 3.077