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Gepubliceerd in: Quality of Life Research 6/2021

28-01-2021

The validity of proxy responses on patient-reported outcome measures: Are proxies a reliable alternative to stroke patients’ self-report?

Auteurs: Brittany R. Lapin, Nicolas R. Thompson, Andrew Schuster, Ryan Honomichl, Irene L. Katzan

Gepubliceerd in: Quality of Life Research | Uitgave 6/2021

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Abstract

Purpose

Caregivers, or proxies, often complete patient-reported outcome measures (PROMs) on behalf of patients with stroke. The objective of our study was to assess the validity and responsiveness of proxy-responses compared to patient-responses across multiple domains of health.

Methods

Stroke patients and their proxies were recruited to complete PROMs between 7/2018–11/2019. PROMs included Neuro-QoL cognitive function, PROMIS physical function, satisfaction with social roles, anxiety, fatigue, pain interference, sleep disturbance, Global Health, and PHQ-9. Internal consistency and convergent validity were compared between patient- and proxy-reported measures. Known-groups validity was assessed across levels of stroke disability. Internal responsiveness was evaluated using paired t-tests for a subset of patients who attended rehabilitation following stroke. Analyses were stratified by patients ≤ 3 vs > 3 months from stroke.

Results

This cross-sectional study included 200 stroke patients (age 62.2 ± 13.3, 41.5% female) and their proxies (age 56.5 ± 13.9, 70% female, 72% spouses). PROMs had high internal consistency and were significantly correlated for patients and proxies. Patient- and proxy-reported measures worsened with increasing stroke disability. For 34 (17%) patients who attended rehabilitation, patients self-reported improvement on 5 domains whereas proxies reported no improvement. Compared to patient self-reports, validity was worse for proxy-reports on patients ≤ 3 months but better > 3 months from stroke.

Conclusions

Both patient- and proxy-reported PROMs demonstrated strong validity. Only patient-reported PROMs were responsive to change, and proxies had worse validity for patients ≤ 3 months from stroke but better validity for patients > 3 months from stroke. These findings justify the utilization of proxy responses in stroke patients > 3 months from stroke.
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Literatuur
1.
go back to reference Mayo, N. E., Wood-Dauphinee, S., Cote, R., Durcan, L., & Carlton, J. (2002). Activity, participation, and quality of life 6 months poststroke. Archives of Physical Medicine and Rehabilitation, 83(8), 1035–1042.CrossRef Mayo, N. E., Wood-Dauphinee, S., Cote, R., Durcan, L., & Carlton, J. (2002). Activity, participation, and quality of life 6 months poststroke. Archives of Physical Medicine and Rehabilitation, 83(8), 1035–1042.CrossRef
17.
go back to reference Dorman, P. J., Waddell, F., Slattery, J., Dennis, M., & Sandercock, P. (1997). Are proxy assessments of health status after stroke with the EuroQol questionnaire feasible, accurate, and unbiased? Stroke, 28(10), 1883–1887.CrossRef Dorman, P. J., Waddell, F., Slattery, J., Dennis, M., & Sandercock, P. (1997). Are proxy assessments of health status after stroke with the EuroQol questionnaire feasible, accurate, and unbiased? Stroke, 28(10), 1883–1887.CrossRef
23.
go back to reference Sneeuw, K. C., Aaronson, N. K., de Haan, R. J., & Limburg, M. (1997). Assessing quality of life after stroke. The value and limitations of proxy ratings. Stroke, 28(8), 1541–1549.CrossRef Sneeuw, K. C., Aaronson, N. K., de Haan, R. J., & Limburg, M. (1997). Assessing quality of life after stroke. The value and limitations of proxy ratings. Stroke, 28(8), 1541–1549.CrossRef
26.
go back to reference Kroenke, K., Spitzer, R. L., & Williams, J. B. (2001). The PHQ-9: validity of a brief depression severity measure. Journal of General Internal Medicine, 16(9), 606–613.CrossRef Kroenke, K., Spitzer, R. L., & Williams, J. B. (2001). The PHQ-9: validity of a brief depression severity measure. Journal of General Internal Medicine, 16(9), 606–613.CrossRef
29.
go back to reference Pickard, A. S., & Knight, S. J. (2005). Proxy evaluation of health-related quality of life: a conceptual framework for understanding multiple proxy perspectives. Medical Care, 43(5), 493–499.CrossRef Pickard, A. S., & Knight, S. J. (2005). Proxy evaluation of health-related quality of life: a conceptual framework for understanding multiple proxy perspectives. Medical Care, 43(5), 493–499.CrossRef
32.
go back to reference Kline, R. (2011). Principles and practice of structural equation modeling (3rd ed.). New York: Guilford Press. Kline, R. (2011). Principles and practice of structural equation modeling (3rd ed.). New York: Guilford Press.
33.
go back to reference Reeve, B. B., Wyrwich, K. W., Wu, A. W., Velikova, G., Terwee, C. B., Snyder, C. F., et al. (2013). ISOQOL recommends minimum standards for patient-reported outcome measures used in patient-centered outcomes and comparative effectiveness research. Quality of Life Research, 22(8), 1889–1905. https://doi.org/10.1007/s11136-012-0344-y.CrossRefPubMed Reeve, B. B., Wyrwich, K. W., Wu, A. W., Velikova, G., Terwee, C. B., Snyder, C. F., et al. (2013). ISOQOL recommends minimum standards for patient-reported outcome measures used in patient-centered outcomes and comparative effectiveness research. Quality of Life Research, 22(8), 1889–1905. https://​doi.​org/​10.​1007/​s11136-012-0344-y.CrossRefPubMed
34.
go back to reference Cicchetti, D. V., & Sparrow, S. A. (1981). Developing criteria for establishing interrater reliability of specific items: Applications to assessment of adaptive behavior. American Journal of Mental Deficiency, 86(2), 127–137.PubMed Cicchetti, D. V., & Sparrow, S. A. (1981). Developing criteria for establishing interrater reliability of specific items: Applications to assessment of adaptive behavior. American Journal of Mental Deficiency, 86(2), 127–137.PubMed
35.
go back to reference R Core Team. (2016). R: a language and environment for statistical computing. www.R-project.org. Vienna: R Foundation for Statistical Computing. R Core Team. (2016). R: a language and environment for statistical computing. www.​R-project.​org. Vienna: R Foundation for Statistical Computing.
39.
go back to reference Kozlowski, A. J., Singh, R., Victorson, D., Miskovic, A., Lai, J. S., Harvey, R. L., et al. (2015). Agreement between responses from community-dwelling persons with stroke and their proxies on the NIH neurological quality of life (Neuro-QoL) short forms. Archives of Physical Medicine and Rehabilitation, 96(11), 1986–1992e1914. https://doi.org/10.1016/j.apmr.2015.07.005. Kozlowski, A. J., Singh, R., Victorson, D., Miskovic, A., Lai, J. S., Harvey, R. L., et al. (2015). Agreement between responses from community-dwelling persons with stroke and their proxies on the NIH neurological quality of life (Neuro-QoL) short forms. Archives of Physical Medicine and Rehabilitation, 96(11), 1986–1992e1914. https://​doi.​org/​10.​1016/​j.​apmr.​2015.​07.​005.
40.
go back to reference Duncan, P. W., Lai, S. M., Tyler, D., Perera, S., Reker, D. M., & Studenski, S. (2002). Evaluation of proxy responses to the Stroke Impact Scale. Stroke, 33(11), 2593–2599.CrossRef Duncan, P. W., Lai, S. M., Tyler, D., Perera, S., Reker, D. M., & Studenski, S. (2002). Evaluation of proxy responses to the Stroke Impact Scale. Stroke, 33(11), 2593–2599.CrossRef
46.
Metagegevens
Titel
The validity of proxy responses on patient-reported outcome measures: Are proxies a reliable alternative to stroke patients’ self-report?
Auteurs
Brittany R. Lapin
Nicolas R. Thompson
Andrew Schuster
Ryan Honomichl
Irene L. Katzan
Publicatiedatum
28-01-2021
Uitgeverij
Springer International Publishing
Gepubliceerd in
Quality of Life Research / Uitgave 6/2021
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-021-02758-9

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