Roydhouse, J and Gutman, R and Keating, NL and Mor, V and Wilson, IB, Proxy and patient reports of health-related quality of life in a national cancer survey, Health and Quality of Life Outcomes, 16, (6) pp. 1-11. ISSN 1477-7525 (2018) [Refereed Article]
Copyright 2018 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
Methods: Data were from the Cancer Care Outcomes Research and Surveillance (CanCORS) study. Patients or their proxies were recruited within 3–6 months of diagnosis with lung or colorectal cancer. HRQOL was measured using the SF-12 mental and physical composite scales. Differences of ½ SD (=5 points) were considered clinically significant. The primary independent variable was proxy status. Linear regression models were used to adjust for patient sociodemographic and clinical covariates, including cancer stage, patient age and education, and patient co-morbidities.
Results: Of 6471 respondents, 1011 (16%) were proxies. Before adjustment, average proxy-reported scores were lower for both physical (−6.7 points, 95% CI -7.4 to −5.9) and mental (−6 points, 95% CI -6.7 to −5.2) health. Proxy-reported scores remained lower after adjustment (physical: −5.8 points, −6.6 to −5; mental: −5.8 points, −6.6 to 5). Proxy-patient score differences remained clinically and statistically significant, even after adjustment for sociodemographic and clinical variables.Conclusions: Proxy-reported outcome scores for both physical and mental health were clinically and significantly lower than patient-reported scores for these outcomes. The size of the proxy-patient score differences was not affected by the health domain, and adjustment for sociodemographic and clinical variables had minimal impact.
|Item Type:||Refereed Article|
|Keywords:||cancer, quality of life, proxy-reported, survey|
|Research Division:||Health Sciences|
|Research Group:||Health services and systems|
|Research Field:||Health services and systems not elsewhere classified|
|Objective Group:||Evaluation of health and support services|
|Objective Field:||Evaluation of health outcomes|
|UTAS Author:||Roydhouse, J (Dr Jessica Roydhouse)|
|Web of Science® Times Cited:||12|
|Deposited By:||Menzies Institute for Medical Research|
|Downloads:||2 View Download Statistics|
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