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Article: 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

TitleComparison 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
Authors
KeywordsFACT-B
Non-inferiority
Measurement properties
EQ-5D-5L
Discriminative ability
Breast cancer
Issue Date2013
Citation
Quality of Life Research, 2013, v. 22, n. 7, p. 1745-1751 How to Cite?
AbstractPurpose: 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. © 2012 Springer Science+Business Media Dordrecht.
Persistent Identifierhttp://hdl.handle.net/10722/220881
ISSN
2015 Impact Factor: 2.429
2015 SCImago Journal Rankings: 1.158

 

DC FieldValueLanguage
dc.contributor.authorLee, Chun Fan-
dc.contributor.authorLuo, Nan-
dc.contributor.authorNg, Raymond-
dc.contributor.authorWong, Nan Soon-
dc.contributor.authorYap, Yoon Sim-
dc.contributor.authorLo, Soo Kien-
dc.contributor.authorChia, Whay Kuang-
dc.contributor.authorYee, Alethea-
dc.contributor.authorKrishna, Lalit-
dc.contributor.authorWong, Celest-
dc.contributor.authorGoh, Cynthia-
dc.contributor.authorCheung, Yin Bun-
dc.date.accessioned2015-10-22T09:04:41Z-
dc.date.available2015-10-22T09:04:41Z-
dc.date.issued2013-
dc.identifier.citationQuality of Life Research, 2013, v. 22, n. 7, p. 1745-1751-
dc.identifier.issn0962-9343-
dc.identifier.urihttp://hdl.handle.net/10722/220881-
dc.description.abstractPurpose: 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. © 2012 Springer Science+Business Media Dordrecht.-
dc.languageeng-
dc.relation.ispartofQuality of Life Research-
dc.subjectFACT-B-
dc.subjectNon-inferiority-
dc.subjectMeasurement properties-
dc.subjectEQ-5D-5L-
dc.subjectDiscriminative ability-
dc.subjectBreast cancer-
dc.titleComparison 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-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s11136-012-0291-7-
dc.identifier.pmid23054499-
dc.identifier.scopuseid_2-s2.0-84884414170-
dc.identifier.volume22-
dc.identifier.issue7-
dc.identifier.spage1745-
dc.identifier.epage1751-

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