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Region Hovedstaden - en del af Københavns Universitetshospital
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Mild to Moderate Cognitive Impairment Does Not Affect the Ability to Self-Report Important Symptoms in Patients With Cancer: A Prospective Longitudinal Multinational Study (EPCCS)

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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CONTEXT: Patients with advanced cancer commonly suffer from both distressing symptoms and cognitive impairment, but the effect of cognitive impairment on the reliability and validity of symptom self-report is unknown.

OBJECTIVES: To evaluate the reliability and validity of symptom self-report in cancer outpatients with and without mild to moderate cognitive impairment.

METHODS: This was an analysis of the longitudinal European Palliative Care Cancer Symptom study of adults with incurable cancer in specialized palliative care (30 centers across 12 countries). Patients who could not comply with the study because of severe cognitive impairment were excluded. Cognitive status on the Mini-Mental State Examination short version and nine symptoms (pain, tiredness, drowsiness, nausea, appetite, breathlessness, depression, anxiety, and well-being) using the revised Edmonton Symptom Assessment System were self-reported at baseline and one-month follow-up. Reliability was analyzed using intraclass correlation coefficients and validity using regression of each symptom with health-related quality of life (HrQoL) measured with European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 15 for Palliative Care.

RESULTS: A total of 1047 patients were included: mean age of 62.9 years; 54.4% women; main cancer types were of digestive organs (26.6%), breast (21.6%), and lungs (21.2%). Cognitive impairment was present in 181 (17.3%) at baseline and associated with worse self-reported tiredness, drowsiness, appetite, and depression. Reliability (intraclass correlation coefficient) and validity (associations with HrQoL) were similar between people with/without cognitive impairment across the nine symptoms, except breathlessness, which showed a weaker relation to HrQoL in patients with cognitive impairment. Findings were robust in sensitivity analyses and after controlling for potential confounders.

CONCLUSION: In advanced cancer, self-report of nine major symptoms was reliable and valid also in people with mild-to-moderate cognitive impairment.

TRIAL REGISTRATION: ClinicalTrials.gov database (NCT01362816).

OriginalsprogEngelsk
TidsskriftJournal of Pain and Symptom Management
Vol/bind60
Udgave nummer2
Sider (fra-til)346-354.e2
ISSN0885-3924
DOI
StatusUdgivet - aug. 2020

Bibliografisk note

Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.

ID: 61756815