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01-09-2013 | Brief Communication

Comparison of the measurement properties between a short and generic instrument, the 5-level EuroQoL Group’s 5-dimension (EQ-5D-5L) questionnaire, and a longer and disease-specific instrument, the Functional Assessment of Cancer Therapy—Breast (FACT-B), in Asian breast cancer patients

Auteurs: Chun Fan Lee, Nan Luo, Raymond Ng, Nan Soon Wong, Yoon Sim Yap, Soo Kien Lo, Whay Kuang Chia, Alethea Yee, Lalit Krishna, Celest Wong, Cynthia Goh, Yin Bun Cheung

Gepubliceerd in: Quality of Life Research | Uitgave 7/2013

Abstract

Purpose

To compare the measurement precision and related properties between the 5-level EuroQoL Group’s 5-dimension (EQ-5D-5L) questionnaire and the Functional Assessment of Cancer Therapy—Breast (FACT-B) questionnaire in assessing breast cancer patients.

Methods

An observational study of 269 Singaporean breast cancer patients. To compare discriminative ability and responsiveness, the effect sizes (in standard deviation) of the EQ-5D-5L and the FACT-B in relation to health indicators and the change in performance status or quality of life were estimated. Test–retest reliability was examined using the intraclass correlation (ICC).

Results

Using performance status, evidence of disease, and treatment status as the criteria, the differences (FACT-B minus EQ-5D-5L) in the effect size for discriminative ability were negative or closed to zero, and the 90 % confidence intervals totally fell within the zone that indicated the non-inferiority of the EQ-5D-5L. For responsiveness and test–retest reliability, the confidence intervals of the differences in effect size and ICC overlapped the non-inferiority margin; thus, non-inferiority in these two aspects could neither be confirmed nor rejected.

Conclusions

The EQ-5D-5L was non-inferior to the FACT-B in discriminating breast cancer patients with different health conditions cross-sectionally. The EQ-5D-5L serves as a reasonable alternative or supplementary instrument to the FACT-B in assessing breast cancer patients’ health outcomes.

vorige artikel The psychometric properties of the Spanish version of the Foot Health Status Questionnaire

volgende artikel The psychometric testing of the Thai version of the health utilities index in patients with ischemic heart disease

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Titel: Comparison of the measurement properties between a short and generic instrument, the 5-level EuroQoL Group’s 5-dimension (EQ-5D-5L) questionnaire, and a longer and disease-specific instrument, the Functional Assessment of Cancer Therapy—Breast (FACT-B), in Asian breast cancer patients
Auteurs: Chun Fan Lee
Nan Luo
Raymond Ng
Nan Soon Wong
Yoon Sim Yap
Soo Kien Lo
Whay Kuang Chia
Alethea Yee
Lalit Krishna
Celest Wong
Cynthia Goh
Yin Bun Cheung
Publicatiedatum: 01-09-2013
Uitgeverij: Springer Netherlands
Gepubliceerd in: Quality of Life Research / Uitgave 7/2013
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-012-0291-7

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Abstract

Purpose

Methods

Results

Conclusions

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