Marshall VK, Given CW, Given BA, Lehto RH, Sikorskii A. Factors affecting medication beliefs among patients newly prescribed oral oncolytic agents.
J Psychosoc Oncol 2020;
40:62-79. [PMID:
33305993 DOI:
10.1080/07347332.2020.1855497]
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Abstract
BACKGROUND
Prescribing oral oncolytic agents (OAs) for advanced cancers is increasing.
AIMS
To explore changes in medication beliefs and the effects of symptom severity, cognitive effectiveness and depressive symptoms on medication beliefs over 12 weeks.
METHODS
Secondary analysis of a randomized controlled trial, testing an intervention to promote symptom management and adherence [N = 230]. Questionnaires evaluated medication beliefs, symptom severity, depressive symptoms, and cognitive effectiveness. Linear mixed effects models were used for analyses.
RESULTS
OA Necessity beliefs increased over time (mean difference 0.0112, SE = 0.055, p 0.04). Concern beliefs did not change and were lower for advanced cancers (-0.193, SE = 0.067, p < 0.01).Depressive symptoms were related to decreased Necessity beliefs (-0.012, SE = 0.005, p = 0.02), but not Concern beliefs. Medication beliefs were not associated with symptom severity or cognitive effectiveness.
CONCLUSION
Patients with advanced cancer hold different medication beliefs compared to earlier staged cancers, lending insight into potential outcomes beyond adherence.
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